2005 BMW 630 vs. 2011 BMW Z4
To start off, 2011 BMW Z4 is newer by 6 year(s). Which means there will be less support and parts availability for 2005 BMW 630. In addition, the cost of maintenance, including insurance, on 2005 BMW 630 would be higher. At 3,000 cc (6 cylinders), 2011 BMW Z4 is equipped with a bigger engine. In terms of performance, 2011 BMW Z4 (300 HP @ 5800 RPM) has 46 more horse power than 2005 BMW 630. (254 HP @ 6600 RPM) In normal driving conditions, 2011 BMW Z4 should accelerate faster than 2005 BMW 630. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW Z4 weights approximately 25 kg more than 2005 BMW 630. 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, 2011 BMW Z4 (406 Nm @ 1400 RPM) has 116 more torque (in Nm) than 2005 BMW 630. (290 Nm @ 2500 RPM). This means 2011 BMW Z4 will have an easier job in driving up hills or pulling heavy equipment than 2005 BMW 630.
Compare all specifications:
| 2005 BMW 630 | 2011 BMW Z4 | |
| Make | BMW | BMW |
| Model | 630 | Z4 |
| Year Released | 2005 | 2011 |
| Body Type | Coupe | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3000 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 254 HP | 300 HP |
| Engine RPM | 6600 RPM | 5800 RPM |
| Torque | 290 Nm | 406 Nm |
| Torque RPM | 2500 RPM | 1400 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1565 kg | 1590 kg |
| Vehicle Length | 4830 mm | 4239 mm |
| Vehicle Width | 1860 mm | 1791 mm |
| Vehicle Height | 1380 mm | 1290 mm |
| Wheelbase Size | 2730 mm | 2497 mm |
| Fuel Tank Capacity | 70 L | 55 L |
