1971 Alfa Romeo Spider vs. 2011 GMC Sierra
To start off, 2011 GMC Sierra is newer by 40 year(s). Which means there will be less support and parts availability for 1971 Alfa Romeo Spider. In addition, the cost of maintenance, including insurance, on 1971 Alfa Romeo Spider would be higher. At 6,000 cc (8 cylinders), 2011 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 GMC Sierra (364 HP @ 5400 RPM) has 275 more horse power than 1971 Alfa Romeo Spider. (89 HP @ 6000 RPM) In normal driving conditions, 2011 GMC Sierra should accelerate faster than 1971 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2011 GMC Sierra weights approximately 1679 kg more than 1971 Alfa Romeo Spider. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2011 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1971 Alfa Romeo Spider. In wet, icy, snow, or gravel driving conditions, 2011 GMC Sierra 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, 2011 GMC Sierra (506 Nm) has 385 more torque (in Nm) than 1971 Alfa Romeo Spider. (121 Nm). This means 2011 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1971 Alfa Romeo Spider.
Compare all specifications:
| 1971 Alfa Romeo Spider | 2011 GMC Sierra | |
| Make | Alfa Romeo | GMC |
| Model | Spider | Sierra |
| Year Released | 1971 | 2011 |
| Body Type | Roadster | Pickup |
| Engine Position | Front | Front |
| Engine Size | 1287 cc | 6000 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 89 HP | 364 HP |
| Engine RPM | 6000 RPM | 5400 RPM |
| Torque | 121 Nm | 506 Nm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 2 seats | 3 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 980 kg | 2659 kg |
| Vehicle Length | 4130 mm | 5710 mm |
| Vehicle Width | 1640 mm | 2040 mm |
| Vehicle Height | 1300 mm | 1940 mm |
| Wheelbase Size | 2260 mm | 3380 mm |
