2003 Buick Regal vs. 2005 Mercedes-Benz C
To start off, 2005 Mercedes-Benz C is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Buick Regal. In addition, the cost of maintenance, including insurance, on 2003 Buick Regal would be higher. At 3,789 cc (6 cylinders), 2003 Buick Regal is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz C (349 HP @ 4200 RPM) has 152 more horse power than 2003 Buick Regal. (197 HP @ 5200 RPM) In normal driving conditions, 2005 Mercedes-Benz C should accelerate faster than 2003 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz C weights approximately 75 kg more than 2003 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Mercedes-Benz C is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 2005 Mercedes-Benz C. However, in wet, icy, snow, or gravel driving conditions, 2003 Buick Regal, being front wheel drive (FWD), will offer much better control with better grip. 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, 2005 Mercedes-Benz C (450 Nm @ 4400 RPM) has 138 more torque (in Nm) than 2003 Buick Regal. (312 Nm @ 4000 RPM). This means 2005 Mercedes-Benz C will have an easier job in driving up hills or pulling heavy equipment than 2003 Buick Regal.
Compare all specifications:
| 2003 Buick Regal | 2005 Mercedes-Benz C | |
| Make | Buick | Mercedes-Benz |
| Model | Regal | C |
| Year Released | 2003 | 2005 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3789 cc | 3199 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 197 HP | 349 HP |
| Engine RPM | 5200 RPM | 4200 RPM |
| Torque | 312 Nm | 450 Nm |
| Torque RPM | 4000 RPM | 4400 RPM |
| Engine Bore Size | 97 mm | 89.9 mm |
| Engine Stroke Size | 86 mm | 84 mm |
| Engine Compression Ratio | 9.4:1 | 9.0:1 |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1635 kg |
| Vehicle Length | 4990 mm | 4530 mm |
| Vehicle Width | 1850 mm | 1730 mm |
| Vehicle Height | 1440 mm | 1420 mm |
| Wheelbase Size | 2780 mm | 2720 mm |
| Fuel Tank Capacity | 64 L | 62 L |
