Germany vs West Germany — 1985 vs 1970
| Sport Quattro S1 | 100 Coupe S | |
|---|---|---|
| Horsepower | 306 hp | 112 hp |
| Torque | 258 lb-ft | 117 lb-ft |
| Engine Size | 2,133 cc | 1,871 cc |
| 0-60 mph | 4.5 sec | 10.5 sec |
| Top Speed | 155 mph | 115 mph |
| ¼ Mile | 13.0 sec | 17.5 sec |
| Weight | 2,403 lbs | 2,403 lbs |
| Wheelbase | 2,205 mm | 2,677 mm |
| Length | 4,100 mm | 4,430 mm |
| Units Produced | 164 | 30,687 |
| Original MSRP | — | $4,700 |
| Value (Excellent) | $750,000 | $30,000 |
| Collectibility | 10/10 | 5/10 |
| Rarity | 10/10 | 7/10 |
The 1985 Audi Sport Quattro S1 holds an edge across most measurable criteria, offering more power, quicker acceleration, higher top speed. That said, the 1970 Audi 100 Coupe S brings better value and remains a compelling choice for enthusiasts who value Audi heritage. The right pick depends on whether you prioritize specifications or the intangible qualities that make a car truly special.
Within the Audi stable, the 1985 Audi Sport Quattro S1 and 1970 Audi 100 Coupe S 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 holds a clear advantage in raw power with 306 hp compared to 112 hp, a 194-horsepower difference that shapes the driving experience. Under the hood, the contrast is notable: the Audi Sport Quattro uses a Inline-5 DOHC Turbo displacing 2,133 cc, while the Audi 100 Coupe S relies on a Inline-4 OHV with 1,871 cc. In the sprint to 60 mph, the 1985 Audi Sport Quattro S1 edges ahead at 4.5 seconds versus 10.5 seconds. Rarity plays a significant role here — with only 164 units built, the 1985 Audi Sport Quattro S1 is considerably scarcer than the Audi 100 Coupe S's 30,687 examples. On the collector market, the 1985 Audi Sport Quattro S1 commands a significant premium over the 1970 Audi 100 Coupe S, reflecting differences in prestige and rarity. From a collectibility standpoint, the 1985 Audi Sport Quattro S1 rates higher among enthusiasts and auction houses.