2006 BMW Z4 vs. 2009 Mercedes-Benz R
To start off, 2009 Mercedes-Benz R is newer by 3 year(s). Which means there will be less support and parts availability for 2006 BMW Z4. In addition, the cost of maintenance, including insurance, on 2006 BMW Z4 would be higher. At 3,246 cc (6 cylinders), 2006 BMW Z4 is equipped with a bigger engine. In terms of performance, 2006 BMW Z4 (343 HP @ 7900 RPM) has 122 more horse power than 2009 Mercedes-Benz R. (221 HP @ 3800 RPM). In normal driving conditions, 2006 BMW Z4 should accelerate faster than 2009 Mercedes-Benz R. With that said, vehicle weight also plays an important factor in acceleration. 2009 Mercedes-Benz R weights approximately 966 kg more than 2006 BMW Z4.
Because 2009 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 2006 BMW Z4. In wet, icy, snow, or gravel driving conditions, 2009 Mercedes-Benz R 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 Mercedes-Benz R (510 Nm @ 2800 RPM) has 15 more torque (in Nm) than 2006 BMW Z4. (495 Nm @ 4900 RPM). This means 2009 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2006 BMW Z4. 2009 Mercedes-Benz R has automatic transmission and 2006 BMW Z4 has manual transmission. 2006 BMW Z4 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2009 Mercedes-Benz R will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2006 BMW Z4 | 2009 Mercedes-Benz R | |
| Make | BMW | Mercedes-Benz |
| Model | Z4 | R |
| Year Released | 2006 | 2009 |
| Body Type | Coupe | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3246 cc | 2987 cc |
| Horse Power | 343 HP | 221 HP |
| Engine RPM | 7900 RPM | 3800 RPM |
| Torque | 495 Nm | 510 Nm |
| Torque RPM | 4900 RPM | 2800 RPM |
| Engine Compression Ratio | 11.5:1 | 17.7:1 |
| Fuel Type | Gasoline - Premium | Diesel |
| Top Speed | 249 km/hour | 222 km/hour |
| Acceleration 0-100mph | 5 seconds | 8.8 seconds |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 6 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1332 kg | 2298 kg |
| Vehicle Length | 4100 mm | 5180 mm |
| Vehicle Width | 1790 mm | 1670 mm |
| Vehicle Height | 1300 mm | 1930 mm |
| Wheelbase Size | 2500 mm | 3220 mm |
| Fuel Consumption Overall | 11.4 L/100km | 9.3 L/100km |
| Fuel Tank Capacity | 60 L | 80 L |
