1991 Innocenti 990 vs. 2003 Opel Signum
To start off, 2003 Opel Signum is newer by 12 year(s). Which means there will be less support and parts availability for 1991 Innocenti 990. In addition, the cost of maintenance, including insurance, on 1991 Innocenti 990 would be higher. At 3,173 cc (6 cylinders), 2003 Opel Signum is equipped with a bigger engine. In terms of performance, 2003 Opel Signum (207 HP @ 6200 RPM) has 156 more horse power than 1991 Innocenti 990. (51 HP @ 5800 RPM) In normal driving conditions, 2003 Opel Signum should accelerate faster than 1991 Innocenti 990. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Signum weights approximately 903 kg more than 1991 Innocenti 990. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. 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, 2003 Opel Signum (300 Nm @ 4000 RPM) has 225 more torque (in Nm) than 1991 Innocenti 990. (75 Nm @ 3200 RPM). This means 2003 Opel Signum will have an easier job in driving up hills or pulling heavy equipment than 1991 Innocenti 990. 2003 Opel Signum has automatic transmission and 1991 Innocenti 990 has manual transmission. 1991 Innocenti 990 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Signum will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1991 Innocenti 990 | 2003 Opel Signum | |
| Make | Innocenti | Opel |
| Model | 990 | Signum |
| Year Released | 1991 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 992 cc | 3173 cc |
| Engine Cylinders | 3 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Horse Power | 51 HP | 207 HP |
| Engine RPM | 5800 RPM | 6200 RPM |
| Torque | 75 Nm | 300 Nm |
| Torque RPM | 3200 RPM | 4000 RPM |
| Engine Bore Size | 76 mm | 87.5 mm |
| Engine Stroke Size | 73 mm | 88 mm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Vehicle Weight | 710 kg | 1613 kg |
| Vehicle Length | 3170 mm | 4640 mm |
| Vehicle Width | 1530 mm | 1800 mm |
| Vehicle Height | 1390 mm | 1470 mm |
| Wheelbase Size | 2050 mm | 2840 mm |
