BMW's M and convertible ranges have a particular following on this coast, alongside the 3 and 5 Series as the more practical daily options — this page separates the two rather than mixing driver-focused models in with executive saloons.
Convertible BMWs (the 4 Series and older 3 Series drop-tops) carry the same deposit tier as the coupé equivalents, generally higher than a standard saloon — each listing states the figure so it can be weighed against the rest of the trip budget.