1991 Ford Mustang vs. 2013 Ford Flex
To start off, 2013 Ford Flex is newer by 22 year(s). Which means there will be less support and parts availability for 1991 Ford Mustang. In addition, the cost of maintenance, including insurance, on 1991 Ford Mustang would be higher. At 3,500 cc (6 cylinders), 2013 Ford Flex is equipped with a bigger engine. In terms of performance, 2013 Ford Flex (281 HP @ 6500 RPM) has 175 more horse power than 1991 Ford Mustang. (106 HP @ 4600 RPM) In normal driving conditions, 2013 Ford Flex should accelerate faster than 1991 Ford Mustang. With that said, vehicle weight also plays an important factor in acceleration. 2013 Ford Flex weights approximately 846 kg more than 1991 Ford Mustang. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Because 2013 Ford Flex is all wheel drive (AWD), it will have significant more traction and grip than 1991 Ford Mustang. In wet, icy, snow, or gravel driving conditions, 2013 Ford Flex 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, 2013 Ford Flex (346 Nm @ 4000 RPM) has 163 more torque (in Nm) than 1991 Ford Mustang. (183 Nm @ 2600 RPM). This means 2013 Ford Flex will have an easier job in driving up hills or pulling heavy equipment than 1991 Ford Mustang.
Compare all specifications:
| 1991 Ford Mustang | 2013 Ford Flex | |
| Make | Ford | Ford |
| Model | Mustang | Flex |
| Year Released | 1991 | 2013 |
| Body Type | Coupe | Crossover |
| Engine Position | Front | Front |
| Engine Size | 2301 cc | 3500 cc |
| Engine Cylinders | 4 cylinders | 6 cylinders |
| Engine Type | in-line | V |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 106 HP | 281 HP |
| Engine RPM | 4600 RPM | 6500 RPM |
| Torque | 183 Nm | 346 Nm |
| Torque RPM | 2600 RPM | 4000 RPM |
| Engine Bore Size | 96 mm | 92 mm |
| Engine Stroke Size | 79.5 mm | 86 mm |
| Engine Compression Ratio | 9.5:1 | 10.3:1 |
| Fuel Type | Gasoline | Gasoline |
| Drive Type | Rear | AWD |
| Number of Seats | 4 seats | 7 seats |
| Number of Doors | 2 doors | 5 doors |
| Vehicle Weight | 1260 kg | 2106 kg |
| Vehicle Length | 4560 mm | 5125 mm |
| Vehicle Width | 1760 mm | 2256 mm |
| Vehicle Height | 1330 mm | 1726 mm |
| Wheelbase Size | 2560 mm | 2994 mm |
| Fuel Tank Capacity | 45 L | 70 L |
