Germany vs Germany — 1991 vs 2006
| S4 C4 UrS4 2.2 20V Turbo | RS4 Avant B7 4.2 V8 | |
|---|---|---|
| Horsepower | 230 hp | 420 hp |
| Torque | 258 lb-ft | 317 lb-ft |
| Engine Size | 2,226 cc | 4,163 cc |
| 0-60 mph | 5.9 sec | 4.5 sec |
| Top Speed | 155 mph | 155 mph |
| ¼ Mile | 14.3 sec | 12.8 sec |
| Weight | 3,704 lbs | 3,770 lbs |
| Wheelbase | 2,693 mm | 2,648 mm |
| Length | 4,790 mm | 4,586 mm |
| Units Produced | 7,298 | — |
| Original MSRP | $43,950 | $71,900 |
| Value (Excellent) | $60,000 | $85,000 |
| Collectibility | 7/10 | 8/10 |
| Rarity | 6/10 | 7/10 |
The 2006 Audi RS4 Avant B7 4.2 V8 emerges ahead in most objective measures, offering more power, quicker acceleration, stronger collectibility. The 1991 Audi S4 C4 UrS4 2.2 20V Turbo 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.
Within the Audi stable, the 1991 Audi S4 C4 UrS4 2.2 20V Turbo and 2006 Audi RS4 Avant B7 4.2 V8 represent different approaches to performance and purpose. Both carry the Audi badge, yet each carves out its own distinct identity. The 2006 Audi RS4 Avant B7 4.2 V8 holds a clear advantage in raw power with 420 hp compared to 230 hp, a 190-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Audi S4 uses a Inline-5 DOHC 20V Turbo displacing 2,226 cc, while the Audi RS4 Avant relies on a V8 DOHC 32V with 4,163 cc. In the sprint to 60 mph, the 2006 Audi RS4 Avant B7 4.2 V8 edges ahead at 4.5 seconds versus 5.9 seconds. Both cars have earned their place in automotive history and continue to captivate enthusiasts around the world.