2005 Buick Regal vs. 2003 Hyundai Sonata
To start off, 2005 Buick Regal is newer by 2 year(s). Which means there will be less support and parts availability for 2003 Hyundai Sonata. In addition, the cost of maintenance, including insurance, on 2003 Hyundai Sonata would be higher. At 3,791 cc (6 cylinders), 2005 Buick Regal is equipped with a bigger engine. In terms of performance, 2005 Buick Regal (197 HP @ 5200 RPM) has 59 more horse power than 2003 Hyundai Sonata. (138 HP @ 5800 RPM). In normal driving conditions, 2005 Buick Regal should accelerate faster than 2003 Hyundai Sonata. With that said, vehicle weight also plays an important factor in acceleration. 2005 Buick Regal weights approximately 135 kg more than 2003 Hyundai Sonata. 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, 2005 Buick Regal (311 Nm @ 4000 RPM) has 131 more torque (in Nm) than 2003 Hyundai Sonata. (180 Nm @ 4500 RPM). This means 2005 Buick Regal will have an easier job in driving up hills or pulling heavy equipment than 2003 Hyundai Sonata. 2005 Buick Regal has automatic transmission and 2003 Hyundai Sonata has manual transmission. 2003 Hyundai Sonata will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2005 Buick Regal will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2005 Buick Regal | 2003 Hyundai Sonata | |
| Make | Buick | Hyundai |
| Model | Regal | Sonata |
| Year Released | 2005 | 2003 |
| Body Type | Sedan | Sedan |
| Engine Position | Front | Front |
| Engine Size | 3791 cc | 1983 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 197 HP | 138 HP |
| Engine RPM | 5200 RPM | 5800 RPM |
| Torque | 311 Nm | 180 Nm |
| Torque RPM | 4000 RPM | 4500 RPM |
| Engine Bore Size | 97 mm | 83.3 mm |
| Engine Stroke Size | 86 mm | 95 mm |
| Engine Compression Ratio | 9.4:1 | 17.7:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Front | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1560 kg | 1425 kg |
| Vehicle Length | 4990 mm | 4520 mm |
| Vehicle Width | 1850 mm | 1700 mm |
| Vehicle Height | 1440 mm | 1590 mm |
| Wheelbase Size | 2780 mm | 2710 mm |
| Fuel Tank Capacity | 64 L | 65 L |
