1991 Audi 100 vs. 2007 Audi S4
To start off, 2007 Audi S4 is newer by 16 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), 2007 Audi S4 is equipped with a bigger engine. In terms of performance, 2007 Audi S4 (340 HP @ 6800 RPM) has 169 more horse power than 1991 Audi 100. (171 HP @ 5500 RPM) In normal driving conditions, 2007 Audi S4 should accelerate faster than 1991 Audi 100. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 175 kg more than 2007 Audi S4.
Because 2007 Audi S4 is four wheel drive (4WD), it will have significant more traction and grip than 1991 Audi 100. In wet, icy, snow, or gravel driving conditions, 2007 Audi S4 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, 2007 Audi S4 (410 Nm @ 3500 RPM) has 160 more torque (in Nm) than 1991 Audi 100. (250 Nm @ 3000 RPM). This means 2007 Audi S4 will have an easier job in driving up hills or pulling heavy equipment than 1991 Audi 100. 2007 Audi S4 has automatic transmission and 1991 Audi 100 has manual transmission. 1991 Audi 100 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi S4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Audi 100 | 2007 Audi S4 | |
| Make | Audi | Audi |
| Model | 100 | S4 |
| Year Released | 1991 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 4163 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 5 valves |
| Horse Power | 171 HP | 340 HP |
| Engine RPM | 5500 RPM | 6800 RPM |
| Torque | 250 Nm | 410 Nm |
| Torque RPM | 3000 RPM | 3500 RPM |
| Acceleration 0-100mph | 8.3 seconds | 5.9 seconds |
| Drive Type | Front | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 4 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1450 kg | 1275 kg |
| Vehicle Length | 4800 mm | 4580 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1400 mm |
| Wheelbase Size | 2690 mm | 2660 mm |
| Fuel Tank Capacity | 80 L | 63 L |
