2008 Audi TT vs. 1991 Ford Sierra
To start off, 2008 Audi TT is newer by 17 year(s). Which means there will be less support and parts availability for 1991 Ford Sierra. In addition, the cost of maintenance, including insurance, on 1991 Ford Sierra would be higher. At 1,984 cc (4 cylinders), 2008 Audi TT is equipped with a bigger engine. In terms of performance, 2008 Audi TT (197 HP @ 5100 RPM) has 122 more horse power than 1991 Ford Sierra. (75 HP @ 4500 RPM). In normal driving conditions, 2008 Audi TT should accelerate faster than 1991 Ford Sierra. With that said, vehicle weight also plays an important factor in acceleration. 2008 Audi TT weights approximately 170 kg more than 1991 Ford Sierra. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Let's talk about torque, 2008 Audi TT (280 Nm @ 1800 RPM) has 128 more torque (in Nm) than 1991 Ford Sierra. (152 Nm @ 2200 RPM). This means 2008 Audi TT will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Sierra.
Compare all specifications:
| 2008 Audi TT | 1991 Ford Sierra | |
| Make | Audi | Ford |
| Model | TT | Sierra |
| Year Released | 2008 | 1991 |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 1751 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 197 HP | 75 HP |
| Engine RPM | 5100 RPM | 4500 RPM |
| Torque | 280 Nm | 152 Nm |
| Torque RPM | 1800 RPM | 2200 RPM |
| Engine Bore Size | 82.5 mm | 82.5 mm |
| Engine Stroke Size | 92.8 mm | 82 mm |
| Engine Compression Ratio | 10.3:1 | 21.5:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1315 kg | 1145 kg |
| Vehicle Length | 4180 mm | 4430 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1360 mm | 1370 mm |
| Wheelbase Size | 2470 mm | 2620 mm |
| Fuel Tank Capacity | 60 L | 60 L |
