2009 Audi TT vs. 1991 BMW Z1
To start off, 2009 Audi TT is newer by 18 year(s). Which means there will be less support and parts availability for 1991 BMW Z1. In addition, the cost of maintenance, including insurance, on 1991 BMW Z1 would be higher. At 2,497 cc (6 cylinders), 1991 BMW Z1 is equipped with a bigger engine. In terms of performance, 2009 Audi TT (268 HP @ 6000 RPM) has 93 more horse power than 1991 BMW Z1. (175 HP @ 5800 RPM). In normal driving conditions, 2009 Audi TT should accelerate faster than 1991 BMW Z1. With that said, vehicle weight also plays an important factor in acceleration. 1991 BMW Z1 weights approximately 355 kg more than 2009 Audi TT.
Because 2009 Audi TT is four wheel drive (4WD), it will have significant more traction and grip than 1991 BMW Z1. In wet, icy, snow, or gravel driving conditions, 2009 Audi TT 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, 2009 Audi TT (350 Nm @ 2500 RPM) has 120 more torque (in Nm) than 1991 BMW Z1. (230 Nm @ 4000 RPM). This means 2009 Audi TT will have an easier job in driving up hills or pulling heavy equipment than 1991 BMW Z1.
Compare all specifications:
| 2009 Audi TT | 1991 BMW Z1 | |
| Make | Audi | BMW |
| Model | TT | Z1 |
| Year Released | 2009 | 1991 |
| Body Type | Coupe | Roadster |
| Engine Position | Front | Front |
| Engine Size | 1984 cc | 2497 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 268 HP | 175 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 350 Nm | 230 Nm |
| Torque RPM | 2500 RPM | 4000 RPM |
| Engine Bore Size | 82.5 mm | 82 mm |
| Engine Stroke Size | 92.8 mm | 78.8 mm |
| Engine Compression Ratio | 9.8:1 | 11.0:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Vehicle Weight | 895 kg | 1250 kg |
| Vehicle Length | 4200 mm | 3960 mm |
| Vehicle Width | 1850 mm | 1810 mm |
| Vehicle Height | 1350 mm | 1280 mm |
| Wheelbase Size | 2470 mm | 2450 mm |
