Germany vs West Germany — 1991 vs 1970
| S4 C4 UrS4 2.2 20V Turbo | 100 Coupe S | |
|---|---|---|
| Horsepower | 230 hp | 112 hp |
| Torque | 258 lb-ft | 117 lb-ft |
| Engine Size | 2,226 cc | 1,871 cc |
| 0-60 mph | 5.9 sec | 10.5 sec |
| Top Speed | 155 mph | 115 mph |
| ¼ Mile | 14.3 sec | 17.5 sec |
| Weight | 3,704 lbs | 2,403 lbs |
| Wheelbase | 2,693 mm | 2,677 mm |
| Length | 4,790 mm | 4,430 mm |
| Units Produced | 7,298 | 30,687 |
| Original MSRP | $43,950 | $4,700 |
| Value (Excellent) | $60,000 | $30,000 |
| Collectibility | 7/10 | 5/10 |
| Rarity | 6/10 | 7/10 |
On balance, the 1991 Audi S4 C4 UrS4 2.2 20V Turbo makes a stronger case on paper with more power, quicker acceleration, higher top speed. However, the 1970 Audi 100 Coupe S counters with lighter weight, better value, and its appeal extends beyond mere numbers. Choose the 1991 Audi S4 C4 UrS4 2.2 20V Turbo for outright capability, or the 1970 Audi 100 Coupe S for a more distinctive ownership experience.
Audi has long offered a diverse lineup, and comparing the 1991 Audi S4 C4 UrS4 2.2 20V Turbo with the 1970 Audi 100 Coupe S highlights the breadth of the marque's engineering philosophy. The 1991 Audi S4 C4 UrS4 2.2 20V Turbo holds a clear advantage in raw power with 230 hp compared to 112 hp, a 118-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 100 Coupe S relies on a Inline-4 OHV with 1,871 cc. In the sprint to 60 mph, the 1991 Audi S4 C4 UrS4 2.2 20V Turbo edges ahead at 5.9 seconds versus 10.5 seconds. The Audi 100 Coupe S carries a weight advantage, tipping the scales 1301 lbs lighter. Rarity plays a significant role here — with only 7,298 units built, the 1991 Audi S4 C4 UrS4 2.2 20V Turbo is considerably scarcer than the Audi 100 Coupe S's 30,687 examples. On the collector market, the 1991 Audi S4 C4 UrS4 2.2 20V Turbo commands a significant premium over the 1970 Audi 100 Coupe S, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1991 Audi S4 C4 UrS4 2.2 20V Turbo rates higher among enthusiasts and auction houses.