1968 · Pontiac · United States
1968 Pontiac Grand Prix: The Last Full-Size Year
The last full-size Grand Prix: 31,711 hardtops, with a 390 hp 428 HO at the top.
United States · researched through 2026-09-23
This record's own dek states that 1968 was the last full-size Grand Prix, 31,711 hardtops, with a 390-hp 428 HO at the top. This record's own overview repeats that the Grand Prix was the last on the 121-inch full-size body, hardtop coupe only after the convertible was dropped, with a new split-grille nose and redesigned concealed headlamps; the 350-hp 400 was standard, and 375-hp 428 and 390-hp 428 HO were optional, with the compiled table recording 31,711 built at $3,697.1,2
This record's own engines section carries four entries: the standard 400 four-barrel rated 350 hp and 440 lb-ft with automatic or 350 hp and 445 lb-ft with manual, an optional 428 four-barrel at 375 hp and 472 lb-ft, and the optional 428 HO four-barrel at 390 hp and 465 lb-ft, the top engine this record's own dek names. This record's own transmissions section lists a standard three-speed manual, an optional four-speed manual floor shift at $226, and an optional Turbo-400 Hydra-Matic also at $226.1
This record's own options section itemizes front disc brakes at $105, a custom air conditioner at $421, an AM/FM stereo radio at $239, a tachometer at $54, a three-speed manual with floor shift at $42, 8-lug aluminum hubs and drums at $126, an auxiliary gauge panel at $21, capacitor ignition at $104, a Cordova top at $105, cornering lamps at $34, cruise control at $63, a custom gear shift knob at $4, door edge guards at $6, an electric clock at $16, head restraints at $42, heavy-duty 15-inch wheels at $11, a hood-mounted tachometer at $63, a low fuel lamp at $6, a glare-proof tilt mirror at $4, a remote outside mirror at $12, a power antenna at $30, power brakes at $42, a power bucket seat (left-hand) at $69, power steering at $105, power vent windows at $53, power windows at $104, a push-button AM radio at $89, a push-button AM/FM radio at $151, Rally II wheels at $63, a rear window defogger at $21, a reclining right-hand seat at $84, a remote deck lid release at $14, a Ride and Handling package at $9, a Safeguard speedometer at $16, Super-Lift shocks at $40, tinted glass at $43, a tinted windshield at $29, an under-hood utility lamp at $7, a visor vanity mirror at $4, and wire wheel discs at $53.1
This record's own interiors section describes standard padded bucket seats with contoured backs and armrests, a center console, and a redesigned instrument panel. This record's own specifications section gives a 121-inch wheelbase, 216.3-inch overall length, 53.0-inch overall height, and a 4,075-pound shipping weight for the Grand Prix, along with full-size Pontiac figures not specific to the model: a 79.8-inch overall width, 63.0-inch front track, 64.0-inch rear track, and 8.55 x 14 standard tires with 8.85 x 14 four-ply or H70 x 15 optional. It also lists the Grand Prix's own standard exterior and running-gear items, deluxe wheel discs, fender skirts and dual exhausts, and transmission ratios of 2.42/1.61/1.00 three-speed, 2.52/1.88/1.46/1.00 four-speed with a 2.20/1.64/1.28/1.00 close-ratio option, and 2.48/1.48/1.00 for the Turbo Hydra-Matic.1,2
This record's own performance and conflicts sections are both empty for the year, leaving no period road test and no disputed figure on record for the 1968 Grand Prix. This record's own identification section gives the Grand Prix as series 266, body 26657, sourced to the same production row as the model-year total, and this record's own keyFacts section restates the 31,711 production total as its sole entry, cross-sourced to both the production compilation and MuscleCarClub.com's own second-generation production figures.2,3
Fact sheet · 1968 · United States
The numbers
1968 Pontiac Grand Prix — The last full-size Grand Prix: 31,711 hardtops, with a 390 hp 428 HO at the top.
Coverage: Partial — researched sections are shown; missing ones are not yet sourced. Researched through 2026-09-23.
Every figure is labeled with how sure we are. Reported means a manufacturer, registry, or reference figure we cite but have not reconciled against factory records ourselves. Disputed means credible sources disagree and both are shown. Rows are separately scoped; don't add them together unless the note says they make up a total.
Key facts
Production
| What was counted | Count | Basis | Status |
|---|---|---|---|
| Grand Prix 2-door sport coupe2,1,3 Grand Prix · 2-door sport coupe · not stated by source Standard Catalog lineage. | 31,711 | built, model-year | Reported |
Prices when new
| Model | Price | Basis |
|---|---|---|
| Grand Prix 2-door sport coupe2 | $3,697 | factory price as compiled, 1968 model year |
Prices are the nominal dollars of the day, not adjusted for inflation.
Engines
| Engine | Factory rating | Availability | Built |
|---|---|---|---|
| 400 4-bbl1 400 cu in · 4-barrel, 10.5:1 | 350 hp @ 4,800, 440 lb-ft @ 3,000 (SAE gross (period advertised rating)) | Grand Prix standard, automatic | Not yet sourced |
| 400 4-bbl1 400 cu in · 4-barrel, 10.5:1 | 350 hp @ 5,000, 445 lb-ft @ 3,000 (SAE gross (period advertised rating)) | Grand Prix standard, manual | Not yet sourced |
| 428 4-bbl1 428 cu in · 4-barrel, 10.5:1 | 375 hp @ 4,800, 472 lb-ft @ 3,200 (SAE gross (period advertised rating)) | optional all models | Not yet sourced |
| 428 HO 4-bbl1 428 cu in · 4-barrel, 10.75:1 | 390 hp @ 5,200, 465 lb-ft @ 3,400 (SAE gross (period advertised rating)) | optional all models | Not yet sourced |
Ratings are the manufacturer's advertised figures under the standard shown (SAE gross before 1972, SAE net after). They are not dyno results, and gross and net ratings can't be compared directly.
Transmissions
| Transmission | Availability | Built |
|---|---|---|
| Three-speed manual1 | standard | Not yet sourced |
| Four-speed manual, floor shift1 | optional, $226 | Not yet sourced |
| Turbo-400 Hydra-Matic1 | optional, $226 | Not yet sourced |
Options and packages
| Code | Option | Price | Installed |
|---|---|---|---|
|
Front disc brakes1 | $105 | Not yet sourced |
|
Custom air conditioner1 | $421 | Not yet sourced |
|
AM/FM stereo radio1 | $239 | Not yet sourced |
|
Tachometer1 | $54 | Not yet sourced |
|
Three-speed manual transmission with floor shift1 | $42 | Not yet sourced |
|
Aluminum hubs and drums, 8-lug1 | $126 | Not yet sourced |
|
Auxiliary gauge panel1 | $21 | Not yet sourced |
|
Capacitor ignition1 | $104 | Not yet sourced |
|
Cordova top1 | $105 | Not yet sourced |
|
Cornering lamps1 | $34 | Not yet sourced |
|
Cruise control1 | $63 | Not yet sourced |
|
Custom gear shift knob1 | $4 | Not yet sourced |
|
Door edge guards1 | $6 | Not yet sourced |
|
Electric clock1 | $16 | Not yet sourced |
|
Head restraints1 | $42 | Not yet sourced |
|
Heavy-duty 15-inch wheels1 | $11 | Not yet sourced |
|
Hood-mounted tachometer1 | $63 | Not yet sourced |
|
Low fuel lamp1 | $6 | Not yet sourced |
|
Mirror, rear view glare-proof tilt1 | $4 | Not yet sourced |
|
Mirror, remote control outside rear view1 | $12 | Not yet sourced |
|
Power antenna1 | $30 | Not yet sourced |
|
Power brakes1 | $42 | Not yet sourced |
|
Power bucket seat, left-hand1 | $69 | Not yet sourced |
|
Power steering1 | $105 | Not yet sourced |
|
Power vent windows1 | $53 | Not yet sourced |
|
Power windows1 | $104 | Not yet sourced |
|
Radio, push-button AM1 | $89 | Not yet sourced |
|
Radio, push-button AM/FM1 | $151 | Not yet sourced |
|
Rally II wheels1 | $63 | Not yet sourced |
|
Rear window defogger1 | $21 | Not yet sourced |
|
Reclining right-hand seat1 | $84 | Not yet sourced |
|
Remote control deck lid release1 | $14 | Not yet sourced |
|
Ride and Handling package1 | $9 | Not yet sourced |
|
Safeguard speedometer1 | $16 | Not yet sourced |
|
Super-Lift shock absorbers1 | $40 | Not yet sourced |
|
Tinted glass1 | $43 | Not yet sourced |
|
Tinted windshield1 | $29 | Not yet sourced |
|
Under-hood utility lamp1 | $7 | Not yet sourced |
|
Visor vanity mirror1 | $4 | Not yet sourced |
|
Wire wheel discs1 | $53 | Not yet sourced |
Paint
| Code | Color | Built |
|---|---|---|
A |
Starlight Black1 | Not yet sourced |
C |
Cameo Ivory1 | Not yet sourced |
D |
Alpine Blue1 | Not yet sourced |
E |
Aegena Blue1 | Not yet sourced |
F |
Nordic Blue1 | Not yet sourced |
G |
April Gold1 | Not yet sourced |
I |
Autumn Bronze1 | Not yet sourced |
K |
Meridian Turquoise1 | Not yet sourced |
L |
Aleutian Blue1 | Not yet sourced |
N |
Flambeau Burgundy1 | Not yet sourced |
O |
Coronado Gold1 | Not yet sourced |
P |
Springmist Green1 | Not yet sourced |
Q |
Verdoro Green1 | Not yet sourced |
R |
Solar Red1 | Not yet sourced |
T |
Primavera Beige1 | Not yet sourced |
V |
Nightshade Green1 | Not yet sourced |
Y |
Mayfair Maize1 | Not yet sourced |
Color names are the factory's. We don't show color swatches, because a screen color is no guide for a restoration.
Interiors
| Code | Trim | Built |
|---|---|---|
|
Padded bucket seats with contoured backs and armrests, center console, redesigned instrument panel (standard).1 | Not yet sourced |
Specifications
| Measure | Value | Applies to |
|---|---|---|
| Wheelbase1 | 121 in | Grand Prix |
| Overall length1 | 216.3 in | Grand Prix |
| Overall height1 | 53 in | Grand Prix |
| Shipping weight2 | 4,075 lb | Grand Prix |
| Overall width1 | 79.8 in | 1968 full-size Pontiac |
| Front track1 | 63 in | 1968 full-size Pontiac |
| Rear track1 | 64 in | 1968 full-size Pontiac |
| Standard tires1 | 8.55 x 14 (8.85 x 14 4-ply or H70 x 15 optional) | 1968 full-size Pontiac passenger cars other than 25269/25211 |
| Transmission ratios1 | 3-speed 2.42/1.61/1.00; 4-speed 2.52/1.88/1.46/1.00 (close ratio 2.20/1.64/1.28/1.00 optional); Turbo Hydra-Matic 400 2.48/1.48/1.00 :1 | 1968 full-size Pontiac |
| Standard exterior and running-gear items1 | Deluxe wheel discs, fender skirts, dual exhausts; three-speed manual standard with the 350 hp 400 | Grand Prix |
Identification
- Series and body
- Series 266, body 26657.2
Identification
Read a 1968 Pontiac VIN
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Same model year
Also in 1968
- AMC AMX AMC's two-seat AMX arrived mid-year on a 97-inch wheelbase. The enthusiast production table counts 6,725 cars, two-thirds of them with the 390.
- AMC Javelin AMC's first pony car, launched in September 1967 as base and SST hardtops. Production of the two combined was about 55,000.
- AMC Rebel and Rebel Machine Now badged AMC, the Rebel came in 550, 770 and SST trims and could be ordered with the 315-hp 390. It is host-car context for the 1970 Machine.
- Buick Riviera Record Riviera sales of 49,284, including 5,337 with the GS handling option.
- Buick Skylark Gran Sport, GS and GSX On the new 112 in two-door body the GS 400 was joined by a GS 350 hardtop, and a dealer-installed Stage 1 package arrived for the 400.
- Buick Wildcat 73,561 Wildcats with the 430 V-8.
- Chevrolet Chevelle and Malibu SS The restyled Chevelle kept SS 396 as its own series and added an SS 396 El Camino: 62,785 SS 396s in three bodies.
- Chevrolet Chevy II and Nova SS engines per the source: L48 350, L34 396 and L78 396. Enthusiast-compiled production: 183,552 cars; Super Sport 5,571.
- Chevrolet El Camino SS The first factory Super Sport El Camino: a separate SS 396 model, 13880, built 5,190 times.
- Chevrolet Impala SS Super Sport becomes an option again (RPO Z03): 36,432, plus 1,778 SS427 (RPO Z24).
- Dodge Charger The redesigned 'Coke bottle' Charger and the new R/T multiplied sales roughly sixfold over 1967.
- Dodge Coronet R/T and Super Bee The redesigned Coronet kept the 440-powered R/T and added the budget Super Bee coupe, a 383 car with an optional Hemi.
- Dodge Dart GTS, Swinger and Demon The new Dart GTS brought a 275 hp 340 or a 300 hp 383, and in February Dodge released 80 Hurst-completed LO23 Hemi Darts for Super Stock drag racing; GTS production was not reported separately.
- Ford Fairlane The restyled intermediate split into Fairlane, Fairlane 500 and the new Torino series; the Fairlane 500 fastback shared the Torino GT body and the 428 Cobra Jet arrived on April 1, 1968.
- Ford Ranchero GT The Ranchero GT carried Torino GT trim; 1,669 GTs were built, per reference-site counts in the Standard Catalog lineage.
- Ford Thunderbird The new 429 Thunder Jet V-8 arrived as the Thunderbird's optional engine at 360 hp.
- Ford Torino Torino arrived as the new top series of the restyled Fairlane line, the Torino GT fastback became its volume performance car, and the 428 Cobra Jet was added on April 1, 1968.
- Mercury Comet and Cyclone The Cyclone moved to the new Montego-based intermediate; the fastback outsold the notchback hardtop by about ten to one, and the 428 Cobra Jet arrived mid-year.
- Mercury Cougar The year of the 427 GT-E, the mid-year 428 Cobra Jet, and the XR7-G, with production down to 113,741.
- Mercury Marauder and S-55 Neither the S-55 nor the Marauder model appears in the sources for 1968; no performance full-size Mercury production figure was found.
- Oldsmobile Cutlass, 4-4-2 and Hurst/Olds The restyled 4-4-2 became its own series, the W-31 small-block arrived, and Hurst built the first 455 Hurst/Olds: 515 cars in the tabulation.
- Plymouth Barracuda and 'Cuda The new 340 arrived in the Formula S alongside the 383, and Plymouth issued a competition-only Hemi Barracuda under order code BO29.
- Plymouth GTX, Belvedere and Satellite The GTX became its own model on the restyled 1968 intermediate body, still with the 375-hp 440 standard and the Hemi at $605, and outsold its first year.
- Plymouth Road Runner Plymouth added a stripped Belvedere-based coupe and hardtop with a special 335-hp 383 as standard and the 426 Hemi as the only engine option, and sold 44,599 of them.
- Pontiac Firebird and Trans Am The first full season: the six grew to 250 cu in, the 326 gave way to a 350, and output rose to 107,112.
- Pontiac GTO A new 112-inch-wheelbase body with an Endura nose, the sport coupe dropped, and 87,684 built.
- Pontiac Tempest and LeMans The new two-door body arrives, and a 350 HO replaces the 326 HO.