2007 Cadillac STS vs. 2008 Chevrolet HHR
To start off, 2008 Chevrolet HHR is newer by 1 year(s). Which means there will be less support and parts availability for 2007 Cadillac STS. In addition, the cost of maintenance, including insurance, on 2007 Cadillac STS would be higher. At 3,563 cc (6 cylinders), 2007 Cadillac STS is equipped with a bigger engine. In terms of performance, 2007 Cadillac STS (253 HP @ 6500 RPM) has 104 more horse power than 2008 Chevrolet HHR. (149 HP @ 5600 RPM). In normal driving conditions, 2007 Cadillac STS should accelerate faster than 2008 Chevrolet HHR. With that said, vehicle weight also plays an important factor in acceleration. 2007 Cadillac STS weights approximately 707 kg more than 2008 Chevrolet HHR. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2007 Cadillac STS 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 2007 Cadillac STS. However, in wet, icy, snow, or gravel driving conditions, 2008 Chevrolet HHR, 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, 2007 Cadillac STS (342 Nm @ 3200 RPM) has 136 more torque (in Nm) than 2008 Chevrolet HHR. (206 Nm @ 4200 RPM). This means 2007 Cadillac STS will have an easier job in driving up hills or pulling heavy equipment than 2008 Chevrolet HHR. 2007 Cadillac STS has automatic transmission and 2008 Chevrolet HHR has manual transmission. 2008 Chevrolet HHR will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Cadillac STS will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2007 Cadillac STS | 2008 Chevrolet HHR | |
| Make | Cadillac | Chevrolet |
| Model | STS | HHR |
| Year Released | 2007 | 2008 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 3563 cc | 2200 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 253 HP | 149 HP |
| Engine RPM | 6500 RPM | 5600 RPM |
| Torque | 342 Nm | 206 Nm |
| Torque RPM | 3200 RPM | 4200 RPM |
| Fuel Type | Gasoline - Premium | Gasoline |
| Drive Type | Rear | Front |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1782 kg | 1075 kg |
| Vehicle Length | 4990 mm | 4480 mm |
| Vehicle Width | 1850 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1610 mm |
| Wheelbase Size | 2960 mm | 2640 mm |
| Fuel Consumption Highway | 9.8 L/100km | 8.1 L/100km |
| Fuel Consumption City | 13.8 L/100km | 11.8 L/100km |
| Fuel Consumption Overall | 12.5 L/100km | 10.2 L/100km |
| Fuel Tank Capacity | 66 L | 61 L |
