My Dad had an Austin 1800 wedge - later called the Princess - which had an eight-track stereo fitted in it during the mid 70s. To my memory he only ever had two cassettes for it - one a greatest hits of Dean Martin and the other (which I used to put on) by a band called Argent. Whenever I hear their big hit 'Hold Your Head Up' (remember that anyone?) I think of that big Austin.