1978 Mercury Grand Marquis vs. 2003 Pontiac Vibe
To start off, 2003 Pontiac Vibe is newer by 25 year(s). Which means there will be less support and parts availability for 1978 Mercury Grand Marquis. In addition, the cost of maintenance, including insurance, on 1978 Mercury Grand Marquis would be higher. At 4,942 cc (8 cylinders), 1978 Mercury Grand Marquis is equipped with a bigger engine. In terms of performance, 1978 Mercury Grand Marquis (129 HP @ 3600 RPM) has 6 more horse power than 2003 Pontiac Vibe. (123 HP @ 6000 RPM). In normal driving conditions, 1978 Mercury Grand Marquis should accelerate faster than 2003 Pontiac Vibe. With that said, vehicle weight also plays an important factor in acceleration. 1978 Mercury Grand Marquis weights approximately 465 kg more than 2003 Pontiac Vibe. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2003 Pontiac Vibe is four wheel drive (4WD), it will have significant more traction and grip than 1978 Mercury Grand Marquis. In wet, icy, snow, or gravel driving conditions, 2003 Pontiac Vibe 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, 1978 Mercury Grand Marquis (303 Nm @ 2600 RPM) has 143 more torque (in Nm) than 2003 Pontiac Vibe. (160 Nm @ 4200 RPM). This means 1978 Mercury Grand Marquis will have an easier job in driving up hills or pulling heavy equipment than 2003 Pontiac Vibe.
Compare all specifications:
| 1978 Mercury Grand Marquis | 2003 Pontiac Vibe | |
| Make | Mercury | Pontiac |
| Model | Grand Marquis | Vibe |
| Year Released | 1978 | 2003 |
| Body Type | Sedan | Hatchback |
| Engine Position | Front | Front |
| Engine Size | 4942 cc | 1796 cc |
| Engine Cylinders | 8 cylinders | 4 cylinders |
| Engine Type | V | in-line |
| Horse Power | 129 HP | 123 HP |
| Engine RPM | 3600 RPM | 6000 RPM |
| Torque | 303 Nm | 160 Nm |
| Torque RPM | 2600 RPM | 4200 RPM |
| Engine Bore Size | 101.6 mm | 79 mm |
| Engine Stroke Size | 76.2 mm | 91 mm |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | 4WD |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 4 doors |
| Vehicle Weight | 1690 kg | 1225 kg |
| Vehicle Length | 5400 mm | 4370 mm |
| Vehicle Width | 1980 mm | 1780 mm |
| Vehicle Height | 1390 mm | 1610 mm |
| Wheelbase Size | 2910 mm | 2610 mm |
