1991 Audi 100 vs. 1965 Riley 4
To start off, 1991 Audi 100 is newer by 26 year(s). Which means there will be less support and parts availability for 1965 Riley 4. In addition, the cost of maintenance, including insurance, on 1965 Riley 4 would be higher. At 2,226 cc (5 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (226 HP) has 159 more horse power than 1965 Riley 4. (67 HP). In normal driving conditions, 1991 Audi 100 should accelerate faster than 1965 Riley 4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 466 kg more than 1965 Riley 4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1991 Audi 100 is four wheel drive (4WD), it will have significant more traction and grip than 1965 Riley 4. In wet, icy, snow, or gravel driving conditions, 1991 Audi 100 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, 1991 Audi 100 (350 Nm @ 1950 RPM) has 229 more torque (in Nm) than 1965 Riley 4. (121 Nm @ 2500 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 1965 Riley 4.
Compare all specifications:
| 1991 Audi 100 | 1965 Riley 4 | |
| Make | Audi | Riley |
| Model | 100 | 4 |
| Year Released | 1991 | 1965 |
| Engine Position | Front | Front |
| Engine Size | 2226 cc | 1620 cc |
| Engine Cylinders | 5 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 226 HP | 67 HP |
| Torque | 350 Nm | 121 Nm |
| Torque RPM | 1950 RPM | 2500 RPM |
| Engine Bore Size | 81 mm | 76.2 mm |
| Engine Stroke Size | 86.4 mm | 88.9 mm |
| Engine Compression Ratio | 9.3:1 | 8.3:1 |
| Drive Type | 4WD | Rear |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1614 kg | 1148 kg |
| Vehicle Length | 4800 mm | 4540 mm |
| Vehicle Width | 1810 mm | 1620 mm |
| Vehicle Height | 1450 mm | 1530 mm |
| Wheelbase Size | 2700 mm | 2530 mm |
| Fuel Tank Capacity | 80 L | 45 L |
