1970 AC 428 vs. 1989 Mercury Grand Marquis
To start off, 1989 Mercury Grand Marquis is newer by 19 year(s). Which means there will be less support and parts availability for 1970 AC 428. In addition, the cost of maintenance, including insurance, on 1970 AC 428 would be higher. At 7,003 cc (8 cylinders), 1970 AC 428 is equipped with a bigger engine. In terms of performance, 1970 AC 428 (298 HP @ 4600 RPM) has 150 more horse power than 1989 Mercury Grand Marquis. (148 HP @ 3200 RPM). In normal driving conditions, 1970 AC 428 should accelerate faster than 1989 Mercury Grand Marquis. With that said, vehicle weight also plays an important factor in acceleration. 1989 Mercury Grand Marquis weights approximately 320 kg more than 1970 AC 428.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front 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, 1970 AC 428 (640 Nm @ 2800 RPM) has 274 more torque (in Nm) than 1989 Mercury Grand Marquis. (366 Nm @ 2000 RPM). This means 1970 AC 428 will have an easier job in driving up hills or pulling heavy equipment than 1989 Mercury Grand Marquis.
Compare all specifications:
| 1970 AC 428 | 1989 Mercury Grand Marquis | |
| Make | AC | Mercury |
| Model | 428 | Grand Marquis |
| Year Released | 1970 | 1989 |
| Engine Position | Front | Front |
| Engine Size | 7003 cc | 4941 cc |
| Engine Cylinders | 8 cylinders | 8 cylinders |
| Engine Type | in-line | V |
| Horse Power | 298 HP | 148 HP |
| Engine RPM | 4600 RPM | 3200 RPM |
| Torque | 640 Nm | 366 Nm |
| Torque RPM | 2800 RPM | 2000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | Rear |
| Number of Seats | 2 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1430 kg | 1750 kg |
| Vehicle Length | 4430 mm | 5400 mm |
| Vehicle Width | 1710 mm | 1980 mm |
| Vehicle Height | 1310 mm | 1390 mm |
| Wheelbase Size | 2450 mm | 2920 mm |
