2003 Buick Regal vs. 2006 Cadillac CTS
To start off, 2006 Cadillac CTS is newer by 3 year(s). Which means there will be less support and parts availability for 2003 Buick Regal. In addition, the cost of maintenance, including insurance, on 2003 Buick Regal would be higher. At 3,789 cc (6 cylinders), 2003 Buick Regal is equipped with a bigger engine. In terms of performance, 2006 Cadillac CTS (252 HP @ 6200 RPM) has 55 more horse power than 2003 Buick Regal. (197 HP @ 5200 RPM) In normal driving conditions, 2006 Cadillac CTS should accelerate faster than 2003 Buick Regal. With that said, vehicle weight also plays an important factor in acceleration. 2006 Cadillac CTS weights approximately 186 kg more than 2003 Buick Regal. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2006 Cadillac CTS 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 2006 Cadillac CTS. However, in wet, icy, snow, or gravel driving conditions, 2003 Buick Regal, 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, 2006 Cadillac CTS (342 Nm @ 3200 RPM) has 30 more torque (in Nm) than 2003 Buick Regal. (312 Nm @ 4000 RPM). This means 2006 Cadillac CTS will have an easier job in driving up hills or pulling heavy equipment than 2003 Buick Regal. 2003 Buick Regal has automatic transmission and 2006 Cadillac CTS has manual transmission. 2006 Cadillac CTS will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Buick Regal will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Buick Regal | 2006 Cadillac CTS | |
| Make | Buick | Cadillac |
| Model | Regal | CTS |
| Year Released | 2003 | 2006 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3789 cc | 3564 cc |
| Engine Cylinders | 6 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 252 HP |
| Engine RPM | 5200 RPM | 6200 RPM |
| Torque | 312 Nm | 342 Nm |
| Torque RPM | 4000 RPM | 3200 RPM |
| Engine Compression Ratio | 9.4:1 | 10.2:1 |
| Fuel Type | Gasoline | Gasoline - Premium |
| Drive Type | Front | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1746 kg |
| Vehicle Length | 4990 mm | 4830 mm |
| Vehicle Width | 1850 mm | 1800 mm |
| Vehicle Height | 1440 mm | 1450 mm |
| Wheelbase Size | 2780 mm | 2890 mm |
| Fuel Tank Capacity | 64 L | 66 L |
