635CSi,the best grand tourer BMW ever made

The E24 635CSi with the M30 3.5-litre straight six is BMW's finest grand touring car. It's fast enough to be entertaining, comfortable enough for long distances, and beautiful enough to stop traffic at any car show. The M30 engine is virtually indestructible if you keep the oil clean and the cooling system maintained. Good examples start around $30,000 in Australia and they're still undervalued compared to equivalent Mercedes SL models from the same era. A fantastic car for weekend drives through the Tassie highlands.