1991 Audi 100 vs. 2006 Audi S4
To start off, 2006 Audi S4 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Audi 100. In addition, the cost of maintenance, including insurance, on 1991 Audi 100 would be higher. At 4,163 cc (8 cylinders), 2006 Audi S4 is equipped with a bigger engine. In terms of performance, 2006 Audi S4 (339 HP @ 7000 RPM) has 226 more horse power than 1991 Audi 100. (113 HP @ 4000 RPM) In normal driving conditions, 2006 Audi S4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 560 kg more than 1991 Audi 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2006 Audi S4 (410 Nm @ 3500 RPM) has 146 more torque (in Nm) than 1991 Audi 100. (264 Nm @ 2250 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100.
Compare all specifications:
| 1991 Audi 100 | 2006 Audi S4 | |
| Make | Audi | Audi |
| Model | 100 | S4 |
| Year Released | 1991 | 2006 |
| Engine Position | Front | Front |
| Engine Size | 2461 cc | 4163 cc |
| Engine Cylinders | 5 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 113 HP | 339 HP |
| Engine RPM | 4000 RPM | 7000 RPM |
| Torque | 264 Nm | 410 Nm |
| Torque RPM | 2250 RPM | 3500 RPM |
| Engine Bore Size | 81 mm | 84.6 mm |
| Engine Stroke Size | 95.5 mm | 92.8 mm |
| Engine Compression Ratio | 21.0:1 | 11.0:1 |
| Fuel Type | Diesel | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1320 kg | 1880 kg |
| Vehicle Length | 4800 mm | 4590 mm |
| Vehicle Width | 1790 mm | 1730 mm |
| Vehicle Height | 1450 mm | 1430 mm |
| Wheelbase Size | 2700 mm | 2650 mm |
| Fuel Consumption Overall | 4.8 L/100km | 13.4 L/100km |
| Fuel Tank Capacity | 80 L | 63 L |
