Classic car insurance

[gjohnsto]

I have been thinking about getting an S-series, and have seen some really good deals if it is insured as a classic car. However, all of the insurance companies I have tried ask the following question:

What make/model is your main car?

This gets tricky because I live in the city centre and work in the city centre, so my main transport is a push bike. This doesn't seem to compute with the insurance companies. Given that most classic policies have a restriction on total mileage anyway, does anyone know of a classic car insurance company which doesn't require the holder to have two cars?
Alternatively an insurance company that can be reasoned with might be a start.......