2003 Alpina Roadster vs. 1999 Infiniti G20
To start off, 2003 Alpina Roadster is newer by 4 year(s). Which means there will be less support and parts availability for 1999 Infiniti G20. In addition, the cost of maintenance, including insurance, on 1999 Infiniti G20 would be higher. At 3,346 cc (6 cylinders), 2003 Alpina Roadster is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP @ 6300 RPM) has 161 more horse power than 1999 Infiniti G20. (140 HP @ 6400 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 1999 Infiniti G20. With that said, vehicle weight also plays an important factor in acceleration. 2003 Alpina Roadster weights approximately 305 kg more than 1999 Infiniti G20. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Alpina Roadster 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 Alpina Roadster. However, in wet, icy, snow, or gravel driving conditions, 1999 Infiniti G20, 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 Alpina Roadster (362 Nm @ 4800 RPM) has 183 more torque (in Nm) than 1999 Infiniti G20. (179 Nm @ 4800 RPM). This means 2003 Alpina Roadster will have an easier job in driving up hills or pulling heavy equipment than 1999 Infiniti G20.
Compare all specifications:
| 2003 Alpina Roadster | 1999 Infiniti G20 | |
| Make | Alpina | Infiniti |
| Model | Roadster | G20 |
| Year Released | 2003 | 1999 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 1996 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 140 HP |
| Engine RPM | 6300 RPM | 6400 RPM |
| Torque | 362 Nm | 179 Nm |
| Torque RPM | 4800 RPM | 4800 RPM |
| Engine Bore Size | 87 mm | 86 mm |
| Engine Stroke Size | 93.8 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 9.5:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Manual |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1626 kg | 1321 kg |
| Vehicle Length | 4100 mm | 4520 mm |
| Vehicle Width | 1790 mm | 1700 mm |
| Vehicle Height | 1310 mm | 1410 mm |
| Wheelbase Size | 2500 mm | 2610 mm |
| Fuel Tank Capacity | 55 L | 60 L |
