1999 Opel Signum vs. 2013 Cadillac ATS
To start off, 2013 Cadillac ATS is newer by 14 year(s). Which means there will be less support and parts availability for 1999 Opel Signum. In addition, the cost of maintenance, including insurance, on 1999 Opel Signum would be higher. At 3,600 cc (6 cylinders), 2013 Cadillac ATS is equipped with a bigger engine. In terms of performance, 2013 Cadillac ATS (317 HP @ 6800 RPM) has 218 more horse power than 1999 Opel Signum. (99 HP @ 3120 RPM) In normal driving conditions, 2013 Cadillac ATS should accelerate faster than 1999 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 Opel Signum weights approximately 25 kg more than 2013 Cadillac ATS.
Because 2013 Cadillac ATS is all wheel drive (AWD), it will have significant more traction and grip than 1999 Opel Signum. 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 133 more torque (in Nm) than 1999 Opel Signum. (240 Nm @ 1500 RPM). This means 2013 Cadillac ATS will have an easier job in driving up hills or pulling heavy equipment than 1999 Opel Signum. 2013 Cadillac ATS has automatic transmission and 1999 Opel Signum has manual transmission. 1999 Opel Signum will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2013 Cadillac ATS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 Opel Signum | 2013 Cadillac ATS | |
| Make | Opel | Cadillac |
| Model | Signum | ATS |
| Year Released | 1999 | 2013 |
| Body Type | Hatchback | Sedan |
| Engine Position | Front | Front |
| Engine Size | 1995 cc | 3600 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 99 HP | 317 HP |
| Engine RPM | 3120 RPM | 6800 RPM |
| Torque | 240 Nm | 373 Nm |
| Torque RPM | 1500 RPM | 4800 RPM |
| Engine Bore Size | 84 mm | 94 mm |
| Engine Stroke Size | 90 mm | 86 mm |
| Engine Compression Ratio | 18.5:1 | 11.5 |
| Drive Type | Front | AWD |
| Transmission Type | Manual | 6-speed automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 5 doors | 4 doors |
| Vehicle Weight | 1595 kg | 1570 kg |
| Vehicle Length | 4640 mm | 4643 mm |
| Vehicle Width | 1800 mm | 1806 mm |
| Vehicle Height | 1470 mm | 1420 mm |
| Wheelbase Size | 2840 mm | 2776 mm |
| Fuel Tank Capacity | 60 L | 61 L |
