2006 Jaguar XKR vs. 2003 Smart Roadster
To start off, 2006 Jaguar XKR is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Smart Roadster. In addition, the cost of maintenance, including insurance, on 2003 Smart Roadster would be higher. At 4,195 cc (8 cylinders), 2006 Jaguar XKR is equipped with a bigger engine. In terms of performance, 2006 Jaguar XKR (390 HP @ 3500 RPM) has 309 more horse power than 2003 Smart Roadster. (81 HP @ 5250 RPM). In normal driving conditions, 2006 Jaguar XKR should accelerate faster than 2003 Smart Roadster. With that said, vehicle weight also plays an important factor in acceleration. 2006 Jaguar XKR weights approximately 963 kg more than 2003 Smart Roadster. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 2006 Jaguar XKR (541 Nm @ 3500 RPM) has 431 more torque (in Nm) than 2003 Smart Roadster. (110 Nm @ 2250 RPM). This means 2006 Jaguar XKR will have an easier job in driving up hills or pulling heavy equipment than 2003 Smart Roadster.
Compare all specifications:
| 2006 Jaguar XKR | 2003 Smart Roadster | |
| Make | Jaguar | Smart |
| Model | XKR | Roadster |
| Year Released | 2006 | 2003 |
| Body Type | Convertible | Coupe |
| Engine Position | Front | Rear |
| Engine Size | 4195 cc | 698 cc |
| Engine Cylinders | 8 cylinders | 3 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 2 valves |
| Horse Power | 390 HP | 81 HP |
| Engine RPM | 3500 RPM | 5250 RPM |
| Torque | 541 Nm | 110 Nm |
| Torque RPM | 3500 RPM | 2250 RPM |
| Engine Bore Size | 86 mm | 66.5 mm |
| Engine Stroke Size | 90.3 mm | 67 mm |
| Engine Compression Ratio | 9.1:1 | 9.0:1 |
| Top Speed | 250 km/hour | 180 km/hour |
| Drive Type | Rear | Rear |
| Number of Seats | 4 seats | 2 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1848 kg | 885 kg |
| Vehicle Length | 4780 mm | 3430 mm |
| Vehicle Width | 1800 mm | 1620 mm |
| Vehicle Height | 1290 mm | 1200 mm |
| Wheelbase Size | 2590 mm | 2370 mm |
| Fuel Consumption Overall | 12.4 L/100km | 5.1 L/100km |
