2006 Audi S4 vs. 1991 Rover 100
To start off, 2006 Audi S4 is newer by 15 year(s). Which means there will be less support and parts availability for 1991 Rover 100. In addition, the cost of maintenance, including insurance, on 1991 Rover 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 (340 HP @ 7000 RPM) has 238 more horse power than 1991 Rover 100. (102 HP @ 6000 RPM). In normal driving conditions, 2006 Audi S4 should accelerate faster than 1991 Rover 100. With that said, vehicle weight also plays an important factor in acceleration. 2006 Audi S4 weights approximately 640 kg more than 1991 Rover 100. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2006 Audi S4 (410 Nm @ 3500 RPM) has 275 more torque (in Nm) than 1991 Rover 100. (135 Nm @ 5000 RPM). This means 2006 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Rover 100.
Compare all specifications:
| 2006 Audi S4 | 1991 Rover 100 | |
| Make | Audi | Rover |
| Model | S4 | 100 |
| Year Released | 2006 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 4163 cc | 1396 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 5 valves | 4 valves |
| Horse Power | 340 HP | 102 HP |
| Engine RPM | 7000 RPM | 6000 RPM |
| Torque | 410 Nm | 135 Nm |
| Torque RPM | 3500 RPM | 5000 RPM |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1510 kg | 870 kg |
| Vehicle Length | 4590 mm | 3530 mm |
| Vehicle Width | 1790 mm | 1570 mm |
| Vehicle Height | 1420 mm | 1380 mm |
