2003 Alpina Roadster vs. 2005 Infiniti G35
To start off, 2005 Infiniti G35 is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Alpina Roadster. In addition, the cost of maintenance, including insurance, on 2003 Alpina Roadster would be higher. At 3,498 cc (6 cylinders), 2005 Infiniti G35 is equipped with a bigger engine. In terms of performance, 2003 Alpina Roadster (301 HP @ 6300 RPM) has 25 more horse power than 2005 Infiniti G35. (276 HP @ 6200 RPM). In normal driving conditions, 2003 Alpina Roadster should accelerate faster than 2005 Infiniti G35. With that said, vehicle weight also plays an important factor in acceleration. 2005 Infiniti G35 weights approximately 29 kg more than 2003 Alpina Roadster.
Because 2005 Infiniti G35 is four wheel drive (4WD), it will have significant more traction and grip than 2003 Alpina Roadster. In wet, icy, snow, or gravel driving conditions, 2005 Infiniti G35 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, 2005 Infiniti G35 (366 Nm @ 4800 RPM) has 4 more torque (in Nm) than 2003 Alpina Roadster. (362 Nm @ 4800 RPM). This means 2005 Infiniti G35 will have an easier job in driving up hills or pulling heavy equipment than 2003 Alpina Roadster. 2005 Infiniti G35 has automatic transmission and 2003 Alpina Roadster has manual transmission. 2003 Alpina Roadster will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Infiniti G35 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Alpina Roadster | 2005 Infiniti G35 | |
| Make | Alpina | Infiniti |
| Model | Roadster | G35 |
| Year Released | 2003 | 2005 |
| Body Type | Convertible | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3346 cc | 3498 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 301 HP | 276 HP |
| Engine RPM | 6300 RPM | 6200 RPM |
| Torque | 362 Nm | 366 Nm |
| Torque RPM | 4800 RPM | 4800 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1626 kg | 1655 kg |
| Vehicle Length | 4100 mm | 4740 mm |
| Vehicle Width | 1790 mm | 1760 mm |
| Vehicle Height | 1310 mm | 1470 mm |
| Wheelbase Size | 2500 mm | 2860 mm |
| Fuel Tank Capacity | 55 L | 106 L |
