1981 Alfa Romeo Spider vs. 2011 BMW X5
To start off, 2011 BMW X5 is newer by 30 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 2,993 cc (6 cylinders), 2011 BMW X5 is equipped with a bigger engine. In terms of performance, 2011 BMW X5 (244 HP @ 4000 RPM) has 141 more horse power than 1981 Alfa Romeo Spider. (103 HP @ 5500 RPM) In normal driving conditions, 2011 BMW X5 should accelerate faster than 1981 Alfa Romeo Spider. With that said, vehicle weight also plays an important factor in acceleration. 2011 BMW X5 weights approximately 1150 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 2011 BMW X5 is all wheel drive (AWD), it will have significant more traction and grip than 1981 Alfa Romeo Spider. In wet, icy, snow, or gravel driving conditions, 2011 BMW X5 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 BMW X5 (540 Nm @ 1750 RPM) has 395 more torque (in Nm) than 1981 Alfa Romeo Spider. (145 Nm @ 4500 RPM). This means 2011 BMW X5 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 | 2011 BMW X5 | |
Make | Alfa Romeo | BMW |
Model | Spider | X5 |
Year Released | 1981 | 2011 |
Body Type | Roadster | SUV |
Engine Position | Front | Front |
Engine Size | 1570 cc | 2993 cc |
Engine Cylinders | 4 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 2 valves | 4 valves |
Horse Power | 103 HP | 244 HP |
Engine RPM | 5500 RPM | 4000 RPM |
Torque | 145 Nm | 540 Nm |
Torque RPM | 4500 RPM | 1750 RPM |
Engine Bore Size | 78 mm | 90 mm |
Engine Stroke Size | 82 mm | 84 mm |
Fuel Type | Gasoline | Diesel |
Drive Type | Rear | AWD |
Number of Seats | 2 seats | 5 seats |
Number of Doors | 2 doors | 5 doors |
Vehicle Weight | 1000 kg | 2150 kg |
Vehicle Length | 4130 mm | 4857 mm |
Vehicle Width | 1640 mm | 1933 mm |
Vehicle Height | 1300 mm | 1776 mm |
Wheelbase Size | 2260 mm | 2934 mm |