AC Ace

vs

Porsche 550 Spyder

UK vs West Germany — 1953 vs 1953

AC Ace (1953)
Porsche 550 Spyder (1953)
Specifications
Ace550 Spyder 1500 RS
Horsepower102 hp110 hp
Torque105 lb-ft88 lb-ft
Engine Size1,991 cc1,498 cc
0-60 mph11.4 sec7.0 sec
Top Speed117 mph137 mph
¼ Mile17.5 sec15.0 sec
Weight1,850 lbs1,213 lbs
Wheelbase2,286 mm2,100 mm
Length3,835 mm3,700 mm
Units Produced72390
Original MSRP$3,854$5,995
Value (Excellent)$350,000$7,000,000
Collectibility9/1010/10
Rarity8/1010/10
The Verdict

The 1953 Porsche 550 Spyder 1500 RS emerges ahead in most objective measures, offering quicker acceleration, higher top speed, lighter weight. The 1953 AC Ace counters with better value, but the numbers favor its rival. Still, both are remarkable machines, and the final choice often comes down to which driving experience speaks to you.

Overview

When UK engineering meets West Germany craftsmanship, the result is one of the most compelling matchups in the classic car world. The 1953 AC Ace and 1953 Porsche 550 Spyder 1500 RS embody their respective national automotive traditions while competing in the same arena. On paper, the two are remarkably close in power output, with the 1953 AC Ace producing 102 hp and the 1953 Porsche 550 Spyder 1500 RS delivering 110 hp. Under the hood, the contrast is notable: the AC Ace uses a Inline-6 SOHC 12V displacing 1,991 cc, while the Porsche 550 Spyder relies on a Flat-4 DOHC with 1,498 cc. In the sprint to 60 mph, the 1953 Porsche 550 Spyder 1500 RS edges ahead at 7.0 seconds versus 11.4 seconds. The Porsche 550 Spyder carries a weight advantage, tipping the scales 637 lbs lighter. Rarity plays a significant role here — with only 90 units built, the 1953 Porsche 550 Spyder 1500 RS is considerably scarcer than the AC Ace's 723 examples. On the collector market, the 1953 Porsche 550 Spyder 1500 RS commands a significant premium over the 1953 AC Ace, reflecting differences in prestige and rarity.