2003 Buick Regal vs. 2013 Infiniti EX
To start off, 2013 Infiniti EX is newer by 10 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, 2013 Infiniti EX (321 HP @ 7000 RPM) has 124 more horse power than 2003 Buick Regal. (197 HP @ 5200 RPM) In normal driving conditions, 2013 Infiniti EX should accelerate faster than 2003 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2013 Infiniti EX weights approximately 235 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 2013 Infiniti EX is all wheel drive (AWD), it will have significant more traction and grip than 2003 Buick Regal. In wet, icy, snow, or gravel driving conditions, 2013 Infiniti EX 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, 2013 Infiniti EX (362 Nm @ 5200 RPM) has 50 more torque (in Nm) than 2003 Buick Regal. (312 Nm @ 4000 RPM). This means 2013 Infiniti EX will have an easier job in driving up hills or pulling heavy equipment than 2003 Buick Regal.
Compare all specifications:
| 2003 Buick Regal | 2013 Infiniti EX | |
| Make | Buick | Infiniti |
| Model | Regal | EX |
| Year Released | 2003 | 2013 |
| Body Type | Sedan | Crossover |
| Engine Position | Front | Front |
| Engine Size | 3789 cc | 3696 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 321 HP |
| Engine RPM | 5200 RPM | 7000 RPM |
| Torque | 312 Nm | 362 Nm |
| Torque RPM | 4000 RPM | 5200 RPM |
| Engine Bore Size | 97 mm | 95 mm |
| Engine Stroke Size | 86 mm | 86 mm |
| Fuel Type | Gasoline | Natural Gas (CNG) |
| Drive Type | Front | AWD |
| Transmission Type | Automatic | 6-speed shiftable automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1795 kg |
| Vehicle Length | 4990 mm | 4631 mm |
| Vehicle Width | 1850 mm | 1803 mm |
| Vehicle Height | 1440 mm | 1589 mm |
| Wheelbase Size | 2780 mm | 2850 mm |
