1999 AC Aceca vs. 2002 Opel Signum
To start off, 2002 Opel Signum is newer by 3 year(s). Which means there will be less support and parts availability for 1999 AC Aceca. In addition, the cost of maintenance, including insurance, on 1999 AC Aceca would be higher. At 3,506 cc (8 cylinders), 1999 AC Aceca is equipped with a bigger engine. In terms of performance, 1999 AC Aceca (346 HP @ 6500 RPM) has 193 more horse power than 2002 Opel Signum. (153 HP @ 5600 RPM). In normal driving conditions, 1999 AC Aceca should accelerate faster than 2002 Opel Signum. With that said, vehicle weight also plays an important factor in acceleration. 1999 AC Aceca weights approximately 125 kg more than 2002 Opel Signum. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 1999 AC Aceca is rear wheel drive (RWD), it offers better handling in dry conditions; in addition, if you are looking to drift, it will be much easier to do with 1999 AC Aceca. However, in wet, icy, snow, or gravel driving conditions, 2002 Opel Signum, being front wheel drive (FWD), will offer much better control with better grip. 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, 1999 AC Aceca (400 Nm @ 4000 RPM) has 150 more torque (in Nm) than 2002 Opel Signum. (250 Nm @ 3800 RPM). This means 1999 AC Aceca will have an easier job in driving up hills or pulling heavy equipment than 2002 Opel Signum.
Compare all specifications:
| 1999 AC Aceca | 2002 Opel Signum | |
| Make | AC | Opel |
| Model | Aceca | Signum |
| Year Released | 1999 | 2002 |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 2172 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 346 HP | 153 HP |
| Engine RPM | 6500 RPM | 5600 RPM |
| Torque | 400 Nm | 250 Nm |
| Torque RPM | 4000 RPM | 3800 RPM |
| Engine Compression Ratio | 8.0:1 | 12.0:1 |
| Drive Type | Rear | Front |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1610 kg | 1485 kg |
| Vehicle Length | 4640 mm | 4640 mm |
| Vehicle Width | 1860 mm | 1800 mm |
| Vehicle Height | 1350 mm | 1470 mm |
| Wheelbase Size | 2300 mm | 2710 mm |
| Fuel Tank Capacity | 90 L | 60 L |
