However there were some GTAs that became GTAms, transformed from one to the other either with parts sourced from Alfa’s then race team Autodelta, or by Autodelta itself. And this is one of those. It actually started life as a GTA Junior, so one of the 500 1.3-litre cars that followed the same number of 1.6-litre GTAs, but after taking part in the 1971 Italian Touring Car Championship was upgraded to full GTAm spec, except and in fact it’s even better than that. For not only does it retain the lightweight aluminium body, while most Ams had a 2.0-litre, eight-valve twin-spark engine, this one has an incredibly rare 16-valve head on it. Breathing through twin 48mm Webers, it produces around 240PS (177kW) in a car weighing about the same as a family bag of cheese and onion crisps.
But engine power aside, the biggest difference between an original GTA (or junior) and a GTAm is its rear suspension. In place of the standard live axle there is a sliding block system designed primarily to lower the rear roll centre and therefore increase traction. It works brilliantly well and does far more to change the feel of the car than the apparently rather more serious changes under the bonnet of the car.