Aviator's tried-and-true V8 engine delivers plenty of power and makes it possible, with the optional package, to tow up to 7,300 pounds. The only criticism, which is often the case with Ford engines, is that it roars at start up and under hard acceleration, like a jet engine on take-off. Beyond those conditions, the Aviator delivered a relatively quiet ride.
Aviator's transmission was problematic in early production versions. While the problems supposedly are fixed, the shifts on our test model were abrupt and harsh, exacerbated by frigid weather we experienced during our weeklong test.
Lincoln expects the majority of Aviators to be ordered with all-wheel drive. As mentioned, two all-wheel drive systems are available. Both are designed more for inclement weather than off-road driving and neither requires action by the driver to engage. One is a permanently engaged all-wheel drive system that uses a viscous coupling to transfer torque between the front and rear wheels. In normal driving, 35 percent of the power is directed to the front and 65 percent to the rear. It shifts as conditions warrant. The optional AdvanceTrac system has the Aviator operate in rear-wheel drive most of the time. If it detects lack of traction, it shifts up to 100 percent of the power to the front wheels; it also can shift the power from one side of the vehicle to the other. Theoretically, the Aviator needs only one wheel with traction to keep rolling with AdvanceTrac.
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