1999 AC Ace vs. 2008 Cadillac STS
To start off, 2008 Cadillac STS is newer by 9 year(s). Which means there will be less support and parts availability for 1999 AC Ace. In addition, the cost of maintenance, including insurance, on 1999 AC Ace would be higher. At 3,564 cc (6 cylinders), 2008 Cadillac STS is equipped with a bigger engine. In terms of performance, 1999 AC Ace (351 HP @ 6500 RPM) has 49 more horse power than 2008 Cadillac STS. (302 HP @ 6300 RPM). In normal driving conditions, 1999 AC Ace should accelerate faster than 2008 Cadillac STS. With that said, vehicle weight also plays an important factor in acceleration. 2008 Cadillac STS weights approximately 535 kg more than 1999 AC Ace.
Because 2008 Cadillac STS is four wheel drive (4WD), it will have significant more traction and grip than 1999 AC Ace. In wet, icy, snow, or gravel driving conditions, 2008 Cadillac STS 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, 1999 AC Ace (400 Nm @ 4000 RPM) has 31 more torque (in Nm) than 2008 Cadillac STS. (369 Nm @ 5200 RPM). This means 1999 AC Ace will have an easier job in driving up hills or pulling heavy equipment than 2008 Cadillac STS. 2008 Cadillac STS has automatic transmission and 1999 AC Ace has manual transmission. 1999 AC Ace will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2008 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 AC Ace | 2008 Cadillac STS | |
| Make | AC | Cadillac |
| Model | Ace | STS |
| Year Released | 1999 | 2008 |
| Body Type | Roadster | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 3564 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 351 HP | 302 HP |
| Engine RPM | 6500 RPM | 6300 RPM |
| Torque | 400 Nm | 369 Nm |
| Torque RPM | 4000 RPM | 5200 RPM |
| Engine Bore Size | 83 mm | 94.1 mm |
| Engine Stroke Size | 81 mm | 85.6 mm |
| Engine Compression Ratio | 8.0:1 | 11.3:1 |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1025 kg | 1560 kg |
| Vehicle Length | 4430 mm | 4990 mm |
| Vehicle Width | 1880 mm | 1850 mm |
| Vehicle Height | 1310 mm | 1470 mm |
| Wheelbase Size | 2480 mm | 2960 mm |
| Fuel Tank Capacity | 90 L | 64 L |
