If You Think The GT4 Is A Mid-engined GT3, You’re Not Too Far Off. The Front Axle Is Shared Between The GT3 And GT4, As Are Many Components Of The Rear Suspension. A Stock Cayman Is Far From Slow, But The GT4, Sitting 1″ Lower On Suspension Lifted From The GT3, And With Revised Aero That Gives It 50% More Downforce, Laps The ‘Ring Quicker Than A 991.1 GT3, And Even The Venerable Carrera GT!