1951 Alvis TA 21 vs. 2003 Nissan Xterra
To start off, 2003 Nissan Xterra is newer by 52 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 2,993 cc (6 cylinders), 1951 Alvis TA 21 is equipped with a bigger engine. In terms of performance, 2003 Nissan Xterra (141 HP @ 5200 RPM) has 48 more horse power than 1951 Alvis TA 21. (93 HP @ 4000 RPM) In normal driving conditions, 2003 Nissan Xterra should accelerate faster than 1951 Alvis TA 21. With that said, vehicle weight also plays an important factor in acceleration. 2003 Nissan Xterra weights approximately 132 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 2003 Nissan Xterra 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, 2003 Nissan Xterra 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, 2003 Nissan Xterra (209 Nm @ 4000 RPM) has 5 more torque (in Nm) than 1951 Alvis TA 21. (204 Nm @ 2000 RPM). This means 2003 Nissan Xterra will have an easier job in driving up hills or pulling heavy equipment than 1951 Alvis TA 21.
Compare all specifications:
| 1951 Alvis TA 21 | 2003 Nissan Xterra | |
| Make | Alvis | Nissan |
| Model | TA 21 | Xterra |
| Year Released | 1951 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 2993 cc | 2393 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 93 HP | 141 HP |
| Engine RPM | 4000 RPM | 5200 RPM |
| Torque | 204 Nm | 209 Nm |
| Torque RPM | 2000 RPM | 4000 RPM |
| Engine Bore Size | 84 mm | 89 mm |
| Engine Stroke Size | 90 mm | 96 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1448 kg | 1580 kg |
| Vehicle Length | 4630 mm | 4530 mm |
| Vehicle Width | 1680 mm | 1800 mm |
| Vehicle Height | 1600 mm | 1890 mm |
| Wheelbase Size | 2840 mm | 2660 mm |
