Who'll buy Plymouth's Prowler, the high-tech open-wheel hot rod that goes into production a year from now (see Auto Show feature, p.48)? Probably not too many full-size athletes. During a special preview, Prowler Team Executive Engineer Craig Love takes reporters on a detailed "walk-around" of a prototype at theTechnical Center in Aurburn Hills, Ml. Underscoring its technical features, he winds up with a review of the 2-seater's "cozy" interior. Asked to get behind the wheel, Mr. Love lowers his 6'9" frame and observes: "I've got plenty of head room." That's not too surprising since the car's convertible top remains lowered. But with his knees touching the steering wheel, Mr. Love concedes that "my legs are a little tight."