2009 BMW Z4 vs. 2012 BMW 135
To start off, 2012 BMW 135 is newer by 3 year(s). Which means there will be less support and parts availability for 2009 BMW Z4. In addition, the cost of maintenance, including insurance, on 2009 BMW Z4 would be higher. At 3,246 cc (6 cylinders), 2009 BMW Z4 is equipped with a bigger engine. In terms of performance, 2009 BMW Z4 (338 HP @ 7900 RPM) has 38 more horse power than 2012 BMW 135. (300 HP @ 5800 RPM). In normal driving conditions, 2009 BMW Z4 should accelerate faster than 2012 BMW 135. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 135 weights approximately 165 kg more than 2009 BMW Z4.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2012 BMW 135 (406 Nm @ 1300 RPM) has 41 more torque (in Nm) than 2009 BMW Z4. (365 Nm @ 4900 RPM). This means 2012 BMW 135 will have an easier job in driving up hills or pulling heavy equipment than 2009 BMW Z4.
Compare all specifications:
| 2009 BMW Z4 | 2012 BMW 135 | |
| Make | BMW | BMW |
| Model | Z4 | 135 |
| Year Released | 2009 | 2012 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 338 HP | 300 HP |
| Engine RPM | 7900 RPM | 5800 RPM |
| Torque | 365 Nm | 406 Nm |
| Torque RPM | 4900 RPM | 1300 RPM |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | 6-speed manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1485 kg | 1650 kg |
| Vehicle Length | 4120 mm | 4374 mm |
| Vehicle Width | 1310 mm | 1748 mm |
| Vehicle Height | 1790 mm | 1412 mm |
| Wheelbase Size | 2500 mm | 2659 mm |
| Fuel Tank Capacity | 70 L | 53 L |
