Ford has rolled out its star of the USA’s biggest motor show a week early. It’s a car that promises to reform the American SUV as we know it: meet the Ford Explorer America concept, a proper yankee ‘truck’, but with a lightweight body and 2.0-litre, four-cylinder turbocharged engine.
Explorer America: ‘bubye’ to the big V8
The Explorer America will be shown at the Detroit motor show, which opens its doors to the press this Sunday. A full-sized 4x4, it has been designed to bring the concept of the traditional American ‘ute’ up-to-date, and in doing so, moves beyond two ingredients that have defined the ‘yank tank’ up until now: the separate, ladder frame chassis and the big, thirsty V8 engine.The Explorer America weighs 70kg less than the current V8-engined Explorer, thanks to some lightweight body and chassis materials. It’s also the first Ford to use a family of engine technologies that it's calling EcoBoost.Broadly speaking, EcoBoost engines are downsized in capacity, and use both direct injection and either one or two turbochargers to produce as much or more power as a bigger, atmospheric engine, but use much less fuel, and emit much less carbon dioxide.In the Explorer America’s case, a V8 engine has been shunned. Instead, the ‘premium’ model runs a twin-turbocharged 3.5-litre V6 engine with 340bhp and 340lb ft of torque. The latter figure is more than Ford’s current 4.6-litre V8 produces, and yet the V6 goes two miles further on every gallon of petrol than the V8, and emits 15 per cent less carbon dioxide.For those wanting an even more fuel-efficient SUV, there’s also a 2.0-litre four-pot engine under the Explorer America's bonnet (yes, you did read that correctly). Producing 271bhp and 280lb ft of torque, this would be up to 30 per cent more fuel efficient than today’s V6 Explorer, and yet no less powerful.Also on the Explorer America you’ll find electric power steering, as well as aerodynamic and other parasitic improvements that add 10 per cent to the car’s overall fuel-efficiency.