1991 Audi S2 vs. 1975 Pontiac Firebird
To start off, 1991 Audi S2 is newer by 16 year(s). Which means there will be less support and parts availability for 1975 Pontiac Firebird. In addition, the cost of maintenance, including insurance, on 1975 Pontiac Firebird would be higher. At 7,462 cc (8 cylinders), 1975 Pontiac Firebird is equipped with a bigger engine. In terms of performance, 1975 Pontiac Firebird (296 HP @ 4000 RPM) has 80 more horse power than 1991 Audi S2. (216 HP @ 5900 RPM) In normal driving conditions, 1975 Pontiac Firebird should accelerate faster than 1991 Audi S2. With that said, vehicle weight also plays an important factor in acceleration. 1975 Pontiac Firebird weights approximately 330 kg more than 1991 Audi S2. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Audi S2 is four wheel drive (4WD), it will have significant more traction and grip than 1975 Pontiac Firebird. In wet, icy, snow, or gravel driving conditions, 1991 Audi S2 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 1975 Pontiac Firebird (563 Nm @ 3200 RPM) has 254 more torque (in Nm) than 1991 Audi S2. (309 Nm @ 1950 RPM). This means 1975 Pontiac Firebird will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi S2.
Compare all specifications:
| 1991 Audi S2 | 1975 Pontiac Firebird | |
| Make | Audi | Pontiac |
| Model | S2 | Firebird |
| Year Released | 1991 | 1975 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 7462 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 216 HP | 296 HP |
| Engine RPM | 5900 RPM | 4000 RPM |
| Torque | 309 Nm | 563 Nm |
| Torque RPM | 1950 RPM | 3200 RPM |
| Engine Bore Size | 81.1 mm | 105.4 mm |
| Engine Stroke Size | 86.4 mm | 106.9 mm |
| Drive Type | 4WD | Rear |
| Number of Seats | 4 seats | 4 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1420 kg | 1750 kg |
| Vehicle Length | 4410 mm | 4870 mm |
| Vehicle Width | 1720 mm | 1870 mm |
| Vehicle Height | 1380 mm | 1290 mm |
| Wheelbase Size | 2560 mm | 2750 mm |
| Fuel Tank Capacity | 70 L | 76 L |
