The GT 43 has the 2l 4 cyl engine. I dont know why Mercedes had decided to put this engine instead of the I6 of the GT 4-door in it. I mean the GT 43 weights around 200kg less than the normal V8's and nearly 400kg less than the V8 hybrid. That means the overall handling of the 43 will be insane, but who is going to buy it??