2004 Buick Regal vs. 2007 Mercedes-Benz R
To start off, 2007 Mercedes-Benz R is newer by 3 year(s). Which means there will be less support and parts availability for 2004 Buick Regal. In addition, the cost of maintenance, including insurance, on 2004 Buick Regal would be higher. At 6,208 cc (8 cylinders), 2007 Mercedes-Benz R is equipped with a bigger engine. In terms of performance, 2007 Mercedes-Benz R (503 HP @ 6800 RPM) has 252 more horse power than 2004 Buick Regal. (251 HP @ 5200 RPM) In normal driving conditions, 2007 Mercedes-Benz R should accelerate faster than 2004 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2007 Mercedes-Benz R weights approximately 778 kg more than 2004 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Mercedes-Benz R is four wheel drive (4WD), it will have significant more traction and grip than 2004 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2007 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, 2007 Mercedes-Benz R (630 Nm) has 242 more torque (in Nm) than 2004 Buick Regal. (388 Nm). This means 2007 Mercedes-Benz R will have an easier job in driving up hills or pulling heavy equipment than 2004 Buick Regal.
Compare all specifications:
| 2004 Buick Regal | 2007 Mercedes-Benz R | |
| Make | Buick | Mercedes-Benz |
| Model | Regal | R |
| Year Released | 2004 | 2007 |
| Body Type | Sedan | Minivan |
| Engine Position | Front | Front |
| Engine Size | 3786 cc | 6208 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 251 HP | 503 HP |
| Engine RPM | 5200 RPM | 6800 RPM |
| Torque | 388 Nm | 630 Nm |
| Engine Bore Size | 97 mm | 102.2 mm |
| Engine Stroke Size | 86 mm | 94.6 mm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1598 kg | 2376 kg |
| Vehicle Length | 4990 mm | 5160 mm |
| Vehicle Width | 1850 mm | 1930 mm |
| Vehicle Height | 1440 mm | 1640 mm |
| Wheelbase Size | 2780 mm | 3220 mm |
| Fuel Consumption Overall | 10.7 L/100km | 16.3 L/100km |
| Fuel Tank Capacity | 64 L | 80 L |
