Bentley Speed Six

vs

Bentley 8 Litre

UK vs UK — 1929 vs 1931

Bentley Speed Six (1929)
Bentley 8 Litre (1931)
Specifications
Speed Six Le Mans Tourer8 Litre Standard Saloon
Horsepower180 hp220 hp
Torque280 lb-ft460 lb-ft
Engine Size6,597 cc7,982 cc
0-60 mph12.0 sec12.5 sec
Top Speed104 mph100 mph
¼ Mile18.5 sec
Weight4,145 lbs5,401 lbs
Wheelbase3,302 mm3,658 mm
Length4,700 mm5,334 mm
Units Produced545100
Value (Excellent)$8,000,000$2,500,000
Collectibility10/1010/10
Rarity9/1010/10
The Verdict

This matchup is remarkably close. The 1929 Bentley Speed Six Le Mans Tourer offers quicker acceleration, higher top speed, lighter weight, while the 1931 Bentley 8 Litre Standard Saloon counters with more power, greater rarity, better value. Neither holds a decisive advantage, making this a true enthusiast's dilemma. Your choice ultimately depends on which driving philosophy resonates more with you.

Overview

Within the Bentley stable, the 1929 Bentley Speed Six Le Mans Tourer and 1931 Bentley 8 Litre Standard Saloon represent different approaches to performance and purpose. Both carry the Bentley badge, yet each carves out its own distinct identity. The 1931 Bentley 8 Litre Standard Saloon holds a clear advantage in raw power with 220 hp compared to 180 hp, a 40-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Bentley Speed Six uses a Inline-6 SOHC displacing 6,597 cc, while the Bentley 8 Litre relies on a Inline-6 OHV with 7,982 cc. In the sprint to 60 mph, the 1929 Bentley Speed Six Le Mans Tourer edges ahead at 12.0 seconds versus 12.5 seconds. The Bentley Speed Six carries a weight advantage, tipping the scales 1256 lbs lighter. Rarity plays a significant role here — with only 100 units built, the 1931 Bentley 8 Litre Standard Saloon is considerably scarcer than the Bentley Speed Six's 545 examples. On the collector market, the 1929 Bentley Speed Six Le Mans Tourer commands a significant premium over the 1931 Bentley 8 Litre Standard Saloon, reflecting differences in prestige and rarity.