1972 Austin Allegro vs. 2011 GMC Sierra
To start off, 2011 GMC Sierra is newer by 39 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 5,999 cc (8 cylinders), 2011 GMC Sierra is equipped with a bigger engine. In terms of performance, 2011 GMC Sierra (353 HP @ 5400 RPM) has 296 more horse power than 1972 Austin Allegro. (57 HP @ 5250 RPM) In normal driving conditions, 2011 GMC Sierra should accelerate faster than 1972 Austin Allegro. With that said, vehicle weight also plays an important factor in acceleration. 2011 GMC Sierra weights approximately 1311 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 2011 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, 2011 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, 2011 GMC Sierra (506 Nm @ 4400 RPM) has 413 more torque (in Nm) than 1972 Austin Allegro. (93 Nm @ 3000 RPM). This means 2011 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 | 2011 GMC Sierra | |
| Make | Austin | GMC |
| Model | Allegro | Sierra |
| Year Released | 1972 | 2011 |
| Engine Position | Front | Front |
| Engine Size | 1275 cc | 5999 cc |
| Engine Cylinders | 4 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 57 HP | 353 HP |
| Engine RPM | 5250 RPM | 5400 RPM |
| Torque | 93 Nm | 506 Nm |
| Torque RPM | 3000 RPM | 4400 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | 4WD |
| Number of Seats | 5 seats | 6 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 830 kg | 2141 kg |
| Vehicle Length | 3200 mm | 6580 mm |
| Vehicle Width | 1620 mm | 2040 mm |
| Vehicle Height | 1400 mm | 1960 mm |
| Wheelbase Size | 2450 mm | 4250 mm |
| Fuel Tank Capacity | 34 L | 129 L |
