OSCA MT4

vs

AC Ace

Italy vs United Kingdom — 1956 vs 1956

OSCA MT4 (1956)
AC Ace (1956)
Specifications
MT4 1500Ace Bristol
Horsepower110 hp125 hp
Torque101 lb-ft124 lb-ft
Engine Size1,491 cc1,971 cc
0-60 mph9.5 sec9.0 sec
Top Speed118 mph120 mph
¼ Mile16.5 sec
Weight1,433 lbs1,880 lbs
Wheelbase2,200 mm2,286 mm
Length3,800 mm3,835 mm
Units Produced135466
Value (Excellent)$450,000$500,000
Collectibility8/109/10
Rarity8/109/10
The Verdict

Numbers favor the 1956 AC Ace Bristol with more power, quicker acceleration, higher top speed. The 1956 OSCA MT4 1500 offers lighter weight, greater rarity, and has its own devoted following. For those who let their heart decide, either car delivers a rewarding ownership experience.

Overview

The rivalry between Italy and United Kingdom automotive industries has produced legendary matchups, and the 1956 OSCA MT4 1500 versus 1956 AC Ace Bristol is among the most fascinating. These two cars represent the best of their national engineering schools. On paper, the two are remarkably close in power output, with the 1956 OSCA MT4 1500 producing 110 hp and the 1956 AC Ace Bristol delivering 125 hp. Under the hood, the contrast is notable: the OSCA MT4 uses a Inline-4 DOHC displacing 1,491 cc, while the AC Ace relies on a Inline-6 OHV (Bristol BS1 Mk II) with 1,971 cc. In the sprint to 60 mph, the 1956 AC Ace Bristol edges ahead at 9.0 seconds versus 9.5 seconds. The OSCA MT4 carries a weight advantage, tipping the scales 447 lbs lighter. Rarity plays a significant role here — with only 135 units built, the 1956 OSCA MT4 1500 is considerably scarcer than the AC Ace's 466 examples. Both trade at comparable values on the collector market, making the choice between them largely one of personal preference.