1999 Chevrolet Astro vs. 1981 Porsche 928
To start off, 1999 Chevrolet Astro is newer by 18 year(s). Which means there will be less support and parts availability for 1981 Porsche 928. In addition, the cost of maintenance, including insurance, on 1981 Porsche 928 would be higher. At 4,472 cc (8 cylinders), 1981 Porsche 928 is equipped with a bigger engine. In terms of performance, 1981 Porsche 928 (238 HP @ 5250 RPM) has 55 more horse power than 1999 Chevrolet Astro. (183 HP @ 4400 RPM) In normal driving conditions, 1981 Porsche 928 should accelerate faster than 1999 Chevrolet Astro. With that said, vehicle weight also plays an important factor in acceleration. 1999 Chevrolet Astro weights approximately 445 kg more than 1981 Porsche 928.
Because 1999 Chevrolet Astro is four wheel drive (4WD), it will have significant more traction and grip than 1981 Porsche 928. In wet, icy, snow, or gravel driving conditions, 1999 Chevrolet Astro 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, 1981 Porsche 928 (356 Nm @ 3600 RPM) has 18 more torque (in Nm) than 1999 Chevrolet Astro. (338 Nm @ 2800 RPM). This means 1981 Porsche 928 will have an easier job in driving up hills or pulling heavy equipment than 1999 Chevrolet Astro.
Compare all specifications:
| 1999 Chevrolet Astro | 1981 Porsche 928 | |
| Make | Chevrolet | Porsche |
| Model | Astro | 928 |
| Year Released | 1999 | 1981 |
| Body Type | Minivan | Coupe |
| Engine Position | Front | Front |
| Engine Size | 4293 cc | 4472 cc |
| Engine Cylinders | 6 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 2 valves |
| Horse Power | 183 HP | 238 HP |
| Engine RPM | 4400 RPM | 5250 RPM |
| Torque | 338 Nm | 356 Nm |
| Torque RPM | 2800 RPM | 3600 RPM |
| Engine Bore Size | 101.6 mm | 95 mm |
| Engine Stroke Size | 88.4 mm | 78.9 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | 4WD | Rear |
| Transmission Type | Manual | Manual |
| Number of Seats | 8 seats | 4 seats |
| Vehicle Weight | 1895 kg | 1450 kg |
| Vehicle Length | 4830 mm | 4450 mm |
| Vehicle Width | 1980 mm | 1840 mm |
| Vehicle Height | 1910 mm | 1320 mm |
| Wheelbase Size | 2830 mm | 2510 mm |
