1955 Alvis TC 21 vs. 1974 Porsche 911
To start off, 1974 Porsche 911 is newer by 19 year(s). Which means there will be less support and parts availability for 1955 Alvis TC 21. In addition, the cost of maintenance, including insurance, on 1955 Alvis TC 21 would be higher. At 2,993 cc (6 cylinders), 1955 Alvis TC 21 is equipped with a bigger engine. In terms of performance, 1974 Porsche 911 (151 HP @ 5700 RPM) has 46 more horse power than 1955 Alvis TC 21. (105 HP @ 4000 RPM) In normal driving conditions, 1974 Porsche 911 should accelerate faster than 1955 Alvis TC 21. With that said, vehicle weight also plays an important factor in acceleration. 1955 Alvis TC 21 weights approximately 375 kg more than 1974 Porsche 911.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. 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, 1974 Porsche 911 (240 Nm @ 3800 RPM) has 19 more torque (in Nm) than 1955 Alvis TC 21. (221 Nm @ 2500 RPM). This means 1974 Porsche 911 will have an easier job in driving up hills or pulling heavy equipment than 1955 Alvis TC 21.
Compare all specifications:
1955 Alvis TC 21 | 1974 Porsche 911 | |
Make | Alvis | Porsche |
Model | TC 21 | 911 |
Year Released | 1955 | 1974 |
Engine Position | Front | Rear |
Engine Size | 2993 cc | 2687 cc |
Engine Cylinders | 6 cylinders | 6 cylinders |
Engine Type | in-line | in-line |
Valves per Cylinder | 2 valves | 2 valves |
Horse Power | 105 HP | 151 HP |
Engine RPM | 4000 RPM | 5700 RPM |
Torque | 221 Nm | 240 Nm |
Torque RPM | 2500 RPM | 3800 RPM |
Engine Bore Size | 84 mm | 90 mm |
Engine Stroke Size | 90 mm | 70.4 mm |
Engine Compression Ratio | 8.0:1 | 8.0:1 |
Top Speed | 164 km/hour | 222 km/hour |
Drive Type | Rear | Rear |
Transmission Type | Manual | Manual |
Number of Seats | 5 seats | 4 seats |
Number of Doors | 2 doors | 2 doors |
Vehicle Weight | 1450 kg | 1075 kg |
Vehicle Length | 4810 mm | 4300 mm |
Vehicle Width | 1680 mm | 1620 mm |
Vehicle Height | 1590 mm | 1330 mm |
Wheelbase Size | 2840 mm | 2270 mm |