1981 Alfa Romeo Spider vs. 2005 Mercedes-Benz G
To start off, 2005 Mercedes-Benz G is newer by 24 year(s). Which means there will be less support and parts availability for 1981 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1981 Alfa Romeo Spider would be higher. At 5,439 cc (8 cylinders), 2005 Mercedes-Benz G is equipped with a bigger engine. In terms of performance, 2005 Mercedes-Benz G (362 HP @ 5500 RPM) has 259 more horse power than 1981 Alfa Romeo Spider. (103 HP @ 5500 RPM) In normal driving conditions, 2005 Mercedes-Benz G should accelerate faster than 1981 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2005 Mercedes-Benz G weights approximately 1425 kg more than 1981 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 Mercedes-Benz G is four wheel drive (4WD), it will have significant more traction and grip than 1981 Alfa Romeo Spider. In wet, icy, snow, or gravel driving conditions, 2005 Mercedes-Benz G 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 Mercedes-Benz G (525 Nm @ 3000 RPM) has 380 more torque (in Nm) than 1981 Alfa Romeo Spider. (145 Nm @ 4500 RPM). This means 2005 Mercedes-Benz G will have an easier job in driving up hills or pulling heavy equipment than 1981 Alfa Romeo Spider.
Compare all specifications:
| 1981 Alfa Romeo Spider | 2005 Mercedes-Benz G | |
| Make | Alfa Romeo | Mercedes-Benz |
| Model | Spider | G |
| Year Released | 1981 | 2005 |
| Body Type | Roadster | SUV |
| Engine Position | Front | Front |
| Engine Size | 1570 cc | 5439 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 3 valves |
| Horse Power | 103 HP | 362 HP |
| Engine RPM | 5500 RPM | 5500 RPM |
| Torque | 145 Nm | 525 Nm |
| Torque RPM | 4500 RPM | 3000 RPM |
| Engine Bore Size | 78 mm | 97 mm |
| Engine Stroke Size | 82 mm | 92 mm |
| Engine Compression Ratio | 9.0:1 | 10.0:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1000 kg | 2425 kg |
| Vehicle Length | 4130 mm | 4670 mm |
| Vehicle Width | 1640 mm | 1870 mm |
| Vehicle Height | 1300 mm | 1940 mm |
| Wheelbase Size | 2260 mm | 2860 mm |
