Grand National / GNX
1982-198732,535 built

Grand National / GNX

The Buick Grand National was the fastest production car in America in 1987, outperforming Ferraris and Porsches.

Price Range
$25K - $165K+
5-Year Return
+150%
Production
32,535
Best Variant
GNX (1987)

History & Overview

Buick transformed the Regal into a turbocharged monster. The Grand National started as a slow 4.3L V6 but evolved into a 3.8L turbo that ran 13-second quarter miles. The GNX (1987 only) was the ultimate version with 547 built.

Specs

Engine3.8L Turbo V6
Power245 HP (GNX: 276 HP)
Weight3,400 lbs
TransmissionTH200-4R

Best Years to Buy

1986-1987 (intercooled turbo, best power)

Most Collectible Variants

GNX (1987)

$150-250K

Only 547 built

Grand National Turbo

Base

T-Type (rare)

+$5-10K