1951 Alvis TA 21 vs. 2007 Porsche Cayenne
To start off, 2007 Porsche Cayenne is newer by 56 year(s). Which means there will be less support and parts availability for 1951 Alvis TA 21. In addition, the cost of maintenance, including insurance, on 1951 Alvis TA 21 would be higher. At 3,189 cc (6 cylinders), 2007 Porsche Cayenne is equipped with a bigger engine. In terms of performance, 2007 Porsche Cayenne (248 HP @ 6000 RPM) has 155 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 2007 Porsche Cayenne should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 2007 Porsche Cayenne weights approximately 712 kg more than 1951 Alvis TA 21. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Porsche Cayenne is four wheel drive (4WD), it will have significant more traction and grip than 1951 Alvis TA 21. In wet, icy, snow, or gravel driving conditions, 2007 Porsche Cayenne 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, 2007 Porsche Cayenne (310 Nm @ 2500 RPM) has 106 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 2007 Porsche Cayenne will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21. 2007 Porsche Cayenne has automatic transmission and 1951 Alvis TA 21 has manual transmission. 1951 Alvis TA 21 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Porsche Cayenne will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1951 Alvis TA 21 | 2007 Porsche Cayenne | |
| Make | Alvis | Porsche |
| Model | TA 21 | Cayenne |
| Year Released | 1951 | 2007 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 3189 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 93 HP | 248 HP |
| Engine RPM | 4000 RPM | 6000 RPM |
| Torque | 204 Nm | 310 Nm |
| Torque RPM | 2000 RPM | 2500 RPM |
| Engine Bore Size | 84 mm | 84 mm |
| Engine Stroke Size | 90 mm | 95.9 mm |
| Engine Compression Ratio | 7.1:1 | 11.5:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1448 kg | 2160 kg |
| Vehicle Length | 4630 mm | 4790 mm |
| Vehicle Width | 1680 mm | 1930 mm |
| Vehicle Height | 1600 mm | 1710 mm |
| Wheelbase Size | 2840 mm | 2860 mm |
| Fuel Tank Capacity | 64 L | 100 L |
