#1973 - 1974 Rivera IV (facelift)
In 1973 ADM engineers revised the current Rivera generation and did a minor facelift, as long with a brand new engine.
The Rivera in the 73-74 period only had 2 trims (2-door and 4-door) both more premium than luxury, as the economy was still struggling to get back in course. The new engine presented was called Barracuda and was the evolution of the previous Mastiff V8, built to be used in a wide arrange of vehicules.
It was an all iron V8, with direct acting overhead cams, ranging from 5.6L to 6.2L and power from 216hp to over 350hp.
Originally, the Rivera was equipped with a powerful variant of the engine, but it wasn’t considered as safe, as the car weighed over 1,700kg, more than the brakes could withstand at higher speeds, so the engine was strangled and the total speed was limited by gearing. The final version was still capable of 200 km/h, and made clear to ADM engineers that the days of ladder chassis cars were over, almost immediately after the facelift they went back to design the next generation.
###2 Door
###4 Door
2 door price: $5,837
4 door price: $5,881