2007 BMW Z4 vs. 1998 Alfa Romeo 155
To start off, 2007 BMW Z4 is newer by 9 year(s). Which means there will be less support and parts availability for 1998 Alfa Romeo 155. In addition, the cost of maintenance, including insurance, on 1998 Alfa Romeo 155 would be higher. At 3,246 cc (6 cylinders), 2007 BMW Z4 is equipped with a bigger engine. In terms of performance, 1998 Alfa Romeo 155 (493 HP @ 11700 RPM) has 155 more horse power than 2007 BMW Z4. (338 HP @ 7900 RPM) In normal driving conditions, 1998 Alfa Romeo 155 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2007 BMW Z4 weights approximately 445 kg more than 1998 Alfa Romeo 155.
Let's talk about torque, 2007 BMW Z4 (365 Nm @ 4900 RPM) has 65 more torque (in Nm) than 1998 Alfa Romeo 155. (300 Nm @ 9500 RPM). This means 2007 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 1998 Alfa Romeo 155.
Compare all specifications:
| 2007 BMW Z4 | 1998 Alfa Romeo 155 | |
| Make | BMW | Alfa Romeo |
| Model | Z4 | 155 |
| Year Released | 2007 | 1998 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2499 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 338 HP | 493 HP |
| Engine RPM | 7900 RPM | 11700 RPM |
| Torque | 365 Nm | 300 Nm |
| Torque RPM | 4900 RPM | 9500 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1485 kg | 1040 kg |
| Vehicle Width | 1790 mm | 1750 mm |
