The 2007 Ford Explorer Sport Trac is a four-door, five-passenger, midsize pickup. It comes in two trim levels, the XLT and the Limited. A new 4.6-liter V8 engine is available that generates 292 horsepower along with an equally new six-speed automatic transmission. A 4.0-liter V6 is also available and it comes with a five-speed automatic. Both engines are available with two- or four-wheel drive.The Ford Explorer Sport Trac is largely redesigned for 2007.