2000 Buick Regal vs. 2003 Infiniti M
To start off, 2003 Infiniti M is newer by 3 year(s). Which means there will be less support and parts availability for 2000 Buick Regal. In addition, the cost of maintenance, including insurance, on 2000 Buick Regal would be higher. At 4,494 cc (8 cylinders), 2003 Infiniti M is equipped with a bigger engine. In terms of performance, 2003 Infiniti M (340 HP @ 6400 RPM) has 143 more horse power than 2000 Buick Regal. (197 HP @ 5200 RPM) In normal driving conditions, 2003 Infiniti M should accelerate faster than 2000 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2003 Infiniti M weights approximately 187 kg more than 2000 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Infiniti M 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 2003 Infiniti M. However, in wet, icy, snow, or gravel driving conditions, 2000 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, 2003 Infiniti M (451 Nm @ 4000 RPM) has 139 more torque (in Nm) than 2000 Buick Regal. (312 Nm @ 4000 RPM). This means 2003 Infiniti M will have an easier job in driving up hills or pulling heavy equipment than 2000 Buick Regal.
Compare all specifications:
| 2000 Buick Regal | 2003 Infiniti M | |
| Make | Buick | Infiniti |
| Model | Regal | M |
| Year Released | 2000 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 4494 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 340 HP |
| Engine RPM | 5200 RPM | 6400 RPM |
| Torque | 312 Nm | 451 Nm |
| Torque RPM | 4000 RPM | 4000 RPM |
| Engine Bore Size | 97 mm | 93 mm |
| Engine Stroke Size | 86 mm | 82.7 mm |
| Engine Compression Ratio | 9.4:1 | 10.5:1 |
| Fuel Type | Gasoline | Gasoline |
| 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 | 1747 kg |
| Vehicle Length | 4990 mm | 5020 mm |
| Vehicle Width | 1850 mm | 1780 mm |
| Vehicle Height | 1440 mm | 1470 mm |
| Wheelbase Size | 2780 mm | 2810 mm |
| Fuel Tank Capacity | 64 L | 79 L |
