Audi RS4

vs

Audi Sport quattro S1

Germany vs Germany — 2006 vs 1985

Audi RS4 (2006)
Audi Sport quattro S1 (1985)
Specifications
RS4 Avant B7Sport quattro S1 E2 Pikes Peak
Horsepower420 hp598 hp
Torque317 lb-ft457 lb-ft
Engine Size4,163 cc2,110 cc
0-60 mph4.5 sec3.1 sec
Top Speed155 mph162 mph
¼ Mile12.8 sec11.2 sec
Weight3,770 lbs2,403 lbs
Wheelbase2,651 mm2,204 mm
Length4,586 mm4,240 mm
Units Produced7,5003
Original MSRP$72,400
Value (Excellent)$75,000$10,000,000
Collectibility8/1010/10
Rarity7/1010/10
The Verdict

The 1985 Audi Sport quattro S1 E2 Pikes Peak emerges ahead in most objective measures, offering more power, quicker acceleration, higher top speed. The 2006 Audi RS4 Avant B7 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

Within the Audi stable, the 2006 Audi RS4 Avant B7 and 1985 Audi Sport quattro S1 E2 Pikes Peak represent different approaches to performance and purpose. Both carry the Audi badge, yet each carves out its own distinct identity. The 1985 Audi Sport quattro S1 E2 Pikes Peak holds a clear advantage in raw power with 598 hp compared to 420 hp, a 178-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Audi RS4 uses a V8 DOHC 32V displacing 4,163 cc, while the Audi Sport quattro S1 relies on a Inline-5 DOHC 20V Turbocharged with 2,110 cc. In the sprint to 60 mph, the 1985 Audi Sport quattro S1 E2 Pikes Peak edges ahead at 3.1 seconds versus 4.5 seconds. The Audi Sport quattro S1 carries a weight advantage, tipping the scales 1367 lbs lighter. Rarity plays a significant role here — with only 3 units built, the 1985 Audi Sport quattro S1 E2 Pikes Peak is considerably scarcer than the Audi RS4's 7,500 examples. On the collector market, the 1985 Audi Sport quattro S1 E2 Pikes Peak commands a significant premium over the 2006 Audi RS4 Avant B7, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1985 Audi Sport quattro S1 E2 Pikes Peak rates higher among enthusiasts and auction houses.