Aston Martin Ulster

vs

Bentley 4.5 Litre

UK vs UK — 1934 vs 1927

Aston Martin Ulster (1934)
Bentley 4.5 Litre (1927)
Specifications
Ulster4.5 Litre Le Mans
Horsepower85 hp110 hp
Torque90 lb-ft210 lb-ft
Engine Size1,495 cc4,398 cc
Top Speed100 mph92 mph
Weight1,905 lbs3,360 lbs
Wheelbase2,591 mm3,302 mm
Length3,810 mm4,420 mm
Units Produced21665
Original MSRP$6,500
Value (Excellent)$5,000,000$2,000,000
Collectibility10/1010/10
Rarity10/108/10
The Verdict

Two outstanding machines, each with compelling strengths. The 1934 Aston Martin Ulster excels in higher top speed, lighter weight, greater rarity, while the 1927 Bentley 4.5 Litre Le Mans stands out for more power, better value. The best advice? Drive both if you can, then follow your instincts.

Overview

Among Sports Car enthusiasts, the matchup between the 1934 Aston Martin Ulster and 1927 Bentley 4.5 Litre Le Mans is one for the ages. These Pre-war machines competed directly for buyers' attention and continue to vie for collectors' affections today. The 1927 Bentley 4.5 Litre Le Mans holds a clear advantage in raw power with 110 hp compared to 85 hp, a 25-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Aston Martin Ulster uses a Inline-4 OHC displacing 1,495 cc, while the Bentley 4.5 Litre relies on a Inline-4 SOHC with 4,398 cc. The 1934 Aston Martin Ulster claims a higher top speed at 100 mph compared to 92 mph. The Aston Martin Ulster carries a weight advantage, tipping the scales 1455 lbs lighter. Rarity plays a significant role here — with only 21 units built, the 1934 Aston Martin Ulster is considerably scarcer than the Bentley 4.5 Litre's 665 examples. On the collector market, the 1934 Aston Martin Ulster commands a significant premium over the 1927 Bentley 4.5 Litre Le Mans, reflecting differences in prestige and rarity.