1991 Audi 100 vs. 2011 Citroen C4
To start off, 2011 Citroen C4 is newer by 20 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 2,771 cc (6 cylinders), 1991 Audi 100 is equipped with a bigger engine. In terms of performance, 1991 Audi 100 (172 HP @ 5500 RPM) has 85 more horse power than 2011 Citroen C4. (87 HP @ 5250 RPM). In normal driving conditions, 1991 Audi 100 should accelerate faster than 2011 Citroen C4. With that said, vehicle weight also plays an important factor in acceleration. 1991 Audi 100 weights approximately 250 kg more than 2011 Citroen C4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 1991 Audi 100 (250 Nm @ 3000 RPM) has 117 more torque (in Nm) than 2011 Citroen C4. (133 Nm @ 3250 RPM). This means 1991 Audi 100 will have an easier job in driving up hills or pulling heavy equipment than 2011 Citroen C4.
Compare all specifications:
| 1991 Audi 100 | 2011 Citroen C4 | |
| Make | Audi | Citroen |
| Model | 100 | C4 |
| Year Released | 1991 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 2771 cc | 1360 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 172 HP | 87 HP |
| Engine RPM | 5500 RPM | 5250 RPM |
| Torque | 250 Nm | 133 Nm |
| Torque RPM | 3000 RPM | 3250 RPM |
| Engine Bore Size | 82.5 mm | 75 mm |
| Engine Stroke Size | 86.4 mm | 77 mm |
| Fuel Type | Gasoline | Gasoline - Premium |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 1506 kg | 1256 kg |
| Vehicle Length | 4800 mm | 4280 mm |
| Vehicle Width | 1780 mm | 1780 mm |
| Vehicle Height | 1450 mm | 1460 mm |
