1999 AC Ace vs. 1998 Buick Riviera
To start off, 1999 AC Ace is newer by 1 year(s). Which means there will be less support and parts availability for 1998 Buick Riviera. In addition, the cost of maintenance, including insurance, on 1998 Buick Riviera would be higher. At 4,130 cc (6 cylinders), 1998 Buick Riviera is equipped with a bigger engine. In terms of performance, 1999 AC Ace (351 HP @ 6500 RPM) has 226 more horse power than 1998 Buick Riviera. (125 HP @ 4000 RPM). In normal driving conditions, 1999 AC Ace should accelerate faster than 1998 Buick Riviera. With that said, vehicle weight also plays an important factor in acceleration. 1998 Buick Riviera weights approximately 641 kg more than 1999 AC Ace.
Because 1999 AC Ace 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 Ace. However, in wet, icy, snow, or gravel driving conditions, 1998 Buick Riviera, 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 Ace (400 Nm @ 4000 RPM) has 113 more torque (in Nm) than 1998 Buick Riviera. (287 Nm @ 2000 RPM). This means 1999 AC Ace will have an easier job in driving up hills or pulling heavy equipment than 1998 Buick Riviera. 1998 Buick Riviera 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. 1998 Buick Riviera will be easier to drive especially in heavy traffic.
Compare all specifications:
| 1999 AC Ace | 1998 Buick Riviera | |
| Make | AC | Buick |
| Model | Ace | Riviera |
| Year Released | 1999 | 1998 |
| Body Type | Roadster | Coupe |
| Engine Position | Front | Front |
| Engine Size | 3506 cc | 4130 cc |
| Engine Cylinders | 8 cylinders | 6 cylinders |
| Engine Type | V | V |
| Horse Power | 351 HP | 125 HP |
| Engine RPM | 6500 RPM | 4000 RPM |
| Torque | 400 Nm | 287 Nm |
| Torque RPM | 4000 RPM | 2000 RPM |
| Engine Bore Size | 83 mm | 100.7 mm |
| Engine Stroke Size | 81 mm | 86.4 mm |
| Engine Compression Ratio | 8.0:1 | 8.0:1 |
| Drive Type | Rear | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 2 doors |
| Vehicle Weight | 1025 kg | 1666 kg |
| Vehicle Length | 4430 mm | 5230 mm |
| Vehicle Width | 1880 mm | 2040 mm |
| Vehicle Height | 1310 mm | 1380 mm |
| Wheelbase Size | 2480 mm | 2780 mm |
| Fuel Tank Capacity | 90 L | 88 L |
