1977 Porsche 928 vs. 2013 Cadillac ATS
To start off, 2013 Cadillac ATS is newer by 36 year(s). Which means there will be less support and parts availability for 1977 Porsche 928. In addition, the cost of maintenance, including insurance, on 1977 Porsche 928 would be higher. At 4,473 cc (8 cylinders), 1977 Porsche 928 is equipped with a bigger engine. In terms of performance, 2013 Cadillac ATS (317 HP @ 6800 RPM) has 80 more horse power than 1977 Porsche 928. (237 HP @ 5250 RPM) In normal driving conditions, 2013 Cadillac ATS should accelerate faster than 1977 Porsche 928. With that said, vehicle weight also plays an important factor in acceleration. 2013 Cadillac ATS weights approximately 120 kg more than 1977 Porsche 928. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Cadillac ATS is all wheel drive (AWD), it will have significant more traction and grip than 1977 Porsche 928. In wet, icy, snow, or gravel driving conditions, 2013 Cadillac ATS 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, 2013 Cadillac ATS (373 Nm @ 4800 RPM) has 10 more torque (in Nm) than 1977 Porsche 928. (363 Nm @ 3600 RPM). This means 2013 Cadillac ATS will have an easier job in driving up hills or pulling heavy equipment than 1977 Porsche 928.
Compare all specifications:
| 1977 Porsche 928 | 2013 Cadillac ATS | |
| Make | Porsche | Cadillac |
| Model | 928 | ATS |
| Year Released | 1977 | 2013 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 4473 cc | 3600 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 237 HP | 317 HP |
| Engine RPM | 5250 RPM | 6800 RPM |
| Torque | 363 Nm | 373 Nm |
| Torque RPM | 3600 RPM | 4800 RPM |
| Engine Bore Size | 95 mm | 94 mm |
| Engine Stroke Size | 78.9 mm | 86 mm |
| Engine Compression Ratio | 10.0:1 | 11.5 |
| Drive Type | Rear | AWD |
| Transmission Type | Automatic | 6-speed automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1450 kg | 1570 kg |
| Vehicle Length | 4450 mm | 4643 mm |
| Vehicle Width | 1840 mm | 1806 mm |
| Vehicle Height | 1320 mm | 1417 mm |
| Wheelbase Size | 2510 mm | 2776 mm |
| Fuel Tank Capacity | 85 L | 61 L |
