What one car would compliment your F30?

So under the assumption that most people viewing this forum already have a 3 or 4 series, I wondered what one car people would choose to have alongside their 3 series?



For me it would be a RWD sports car - manual box, petrol engine, 2 seats or useless back seats, great handling, possibly convertible.... MX5, Honda S2000, Elise, Boxster, Cayman, 911(997), F-type, R8, Vantage.



Or in dream world a McLaren F1!