2007 BMW Z4 vs. 2012 BMW 135
To start off, 2012 BMW 135 is newer by 5 year(s). Which means there will be less support and parts availability for 2007 BMW Z4. In addition, the cost of maintenance, including insurance, on 2007 BMW Z4 would be higher. At 2,979 cc (6 cylinders), 2012 BMW 135 is equipped with a bigger engine. In terms of performance, 2012 BMW 135 (300 HP @ 5800 RPM) has 111 more horse power than 2007 BMW Z4. (189 HP @ 6000 RPM) In normal driving conditions, 2012 BMW 135 should accelerate faster than 2007 BMW Z4. With that said, vehicle weight also plays an important factor in acceleration. 2012 BMW 135 weights approximately 390 kg more than 2007 BMW Z4. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
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 161 more torque (in Nm) than 2007 BMW Z4. (245 Nm @ 3500 RPM). This means 2012 BMW 135 will have an easier job in driving up hills or pulling heavy equipment than 2007 BMW Z4.
Compare all specifications:
| 2007 BMW Z4 | 2012 BMW 135 | |
| Make | BMW | BMW |
| Model | Z4 | 135 |
| Year Released | 2007 | 2012 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Front |
| Engine Size | 2494 cc | 2979 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 189 HP | 300 HP |
| Engine RPM | 6000 RPM | 5800 RPM |
| Torque | 245 Nm | 406 Nm |
| Torque RPM | 3500 RPM | 1300 RPM |
| Engine Bore Size | 84 mm | 89.6 mm |
| Engine Stroke Size | 75 mm | 84 mm |
| 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 | 1260 kg | 1650 kg |
| Vehicle Length | 4100 mm | 4374 mm |
| Vehicle Width | 1790 mm | 1748 mm |
| Vehicle Height | 1310 mm | 1412 mm |
| Wheelbase Size | 2500 mm | 2659 mm |
| Fuel Tank Capacity | 55 L | 53 L |
