2003 Pontiac Grand Prix vs. 2013 Cadillac ATS
To start off, 2013 Cadillac ATS is newer by 10 year(s). Which means there will be less support and parts availability for 2003 Pontiac Grand Prix. In addition, the cost of maintenance, including insurance, on 2003 Pontiac Grand Prix would be higher. At 3,600 cc (6 cylinders), 2013 Cadillac ATS is equipped with a bigger engine. In terms of performance, 2013 Cadillac ATS (317 HP @ 6800 RPM) has 143 more horse power than 2003 Pontiac Grand Prix. (174 HP @ 5200 RPM) In normal driving conditions, 2013 Cadillac ATS should accelerate faster than 2003 Pontiac Grand Prix. With that said, vehicle weight also plays an important factor in acceleration. 2013 Cadillac ATS weights approximately 35 kg more than 2003 Pontiac Grand Prix. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Cadillac ATS 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 2013 Cadillac ATS. However, in wet, icy, snow, or gravel driving conditions, 2003 Pontiac Grand Prix, 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, 2013 Cadillac ATS (373 Nm @ 4800 RPM) has 109 more torque (in Nm) than 2003 Pontiac Grand Prix. (264 Nm @ 4000 RPM). This means 2013 Cadillac ATS will have an easier job in driving up hills or pulling heavy equipment than 2003 Pontiac Grand Prix.
Compare all specifications:
| 2003 Pontiac Grand Prix | 2013 Cadillac ATS | |
| Make | Pontiac | Cadillac |
| Model | Grand Prix | ATS |
| Year Released | 2003 | 2013 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3130 cc | 3600 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 174 HP | 317 HP |
| Engine RPM | 5200 RPM | 6800 RPM |
| Torque | 264 Nm | 373 Nm |
| Torque RPM | 4000 RPM | 4800 RPM |
| Engine Bore Size | 89 mm | 94 mm |
| Engine Stroke Size | 84 mm | 86 mm |
| Fuel Type | Gasoline | Flex Fuel |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | 6-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1535 kg | 1570 kg |
| Vehicle Length | 5000 mm | 4643 mm |
| Vehicle Width | 1850 mm | 1806 mm |
| Vehicle Height | 1400 mm | 1417 mm |
| Wheelbase Size | 3160 mm | 2776 mm |
| Fuel Tank Capacity | 66 L | 61 L |
