I'll be honest, given how many great cars Reiza released over past few months (and still plans to release very soon!) I am conflicted as to what would be an AMS league of the dreams - Boxer Cup, Montana, F1 '67 or one of the cars from the BRIT pack (awesome amateur racing vibe!)? Jesus I want to compete with them all.
Montana is probably way simpler or most people than the Boxer. The Boxer is challenging and punishing. The Montana is much more reliable and predictable but its still got teeth and some grunt and unlike the similarly forgiving Marcas cars the power is delivered to the correct axle.