1972 Austin Allegro vs. 2005 GMC Sierra
To start off, 2005 GMC Sierra is newer by 33 year(s). Which means there will be less support and parts availability for 1972 Austin Allegro. In addition, the cost of maintenance, including insurance, on 1972 Austin Allegro would be higher. At 5,965 cc (8 cylinders), 2005 GMC Sierra is equipped with a bigger engine. In terms of performance, 2005 GMC Sierra (300 HP) has 243 more horse power than 1972 Austin Allegro. (57 HP) In normal driving conditions, 2005 GMC Sierra should accelerate faster than 1972 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 2005 GMC Sierra weights approximately 2044 kg more than 1972 Austin Allegro. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2005 GMC Sierra is four wheel drive (4WD), it will have significant more traction and grip than 1972 Austin Allegro. In wet, icy, snow, or gravel driving conditions, 2005 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, 2005 GMC Sierra (488 Nm) has 395 more torque (in Nm) than 1972 Austin Allegro. (93 Nm). This means 2005 GMC Sierra will have an easier job in driving up hills or pulling heavy equipment than 1972 Austin Allegro.
Compare all specifications:
| 1972 Austin Allegro | 2005 GMC Sierra | |
| Make | Austin | GMC |
| Model | Allegro | Sierra |
| Year Released | 1972 | 2005 |
| Engine Position | Front | Front |
| Engine Size | 1275 cc | 5965 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 57 HP | 300 HP |
| Torque | 93 Nm | 488 Nm |
| Engine Bore Size | 70.6 mm | 102 mm |
| Engine Stroke Size | 81.3 mm | 92 mm |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 830 kg | 2874 kg |
| Vehicle Length | 3200 mm | 6510 mm |
| Vehicle Width | 1620 mm | 2030 mm |
| Vehicle Height | 1400 mm | 1960 mm |
| Wheelbase Size | 2450 mm | 4250 mm |
| Fuel Tank Capacity | 34 L | 129 L |
