Bentley 4.5 Litre

vs

Bentley 8 Litre

UK vs UK — 1929 vs 1931

Bentley 4.5 Litre (1929)
Bentley 8 Litre (1931)
Specifications
4.5 Litre Blower8 Litre Standard Saloon
Horsepower240 hp220 hp
Torque460 lb-ft
Engine Size4,398 cc7,982 cc
0-60 mph12.5 sec
Top Speed125 mph100 mph
Weight3,582 lbs5,401 lbs
Wheelbase3,302 mm3,658 mm
Length4,250 mm5,334 mm
Units Produced55100
Value (Excellent)$10,000,000$2,500,000
Collectibility10/1010/10
Rarity10/1010/10
The Verdict

Two outstanding machines, each with compelling strengths. The 1929 Bentley 4.5 Litre Blower excels in higher top speed, lighter weight, while the 1931 Bentley 8 Litre Standard Saloon stands out for better value. The best advice? Drive both if you can, then follow your instincts.

Overview

The 1929 Bentley 4.5 Litre Blower and 1931 Bentley 8 Litre Standard Saloon share a manufacturer in Bentley, but that's where the similarities get interesting. These two models reveal the versatility and ambition of the Bentley brand. The 1929 Bentley 4.5 Litre Blower holds a clear advantage in raw power with 240 hp compared to 220 hp, a 20-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Bentley 4.5 Litre uses a Inline-4 Supercharged displacing 4,398 cc, while the Bentley 8 Litre relies on a Inline-6 OHV with 7,982 cc. The 1929 Bentley 4.5 Litre Blower claims a higher top speed at 125 mph compared to 100 mph. The Bentley 4.5 Litre carries a weight advantage, tipping the scales 1819 lbs lighter. On the collector market, the 1929 Bentley 4.5 Litre Blower commands a significant premium over the 1931 Bentley 8 Litre Standard Saloon, reflecting differences in prestige and rarity.