First of all, there's a great range of both luxury and economy rental vehicles available in Sonoma County. What you go with is largely dependent on how much you want to spend and what you plan to do. Specialty vehicles often spare no expense when it comes to mod cons and comfort. If you're splashing out, why not book an elite SUV, or perhaps a fancy mid-sized vehicle? Otherwise, if you're just after a set of wheels to zip around town in at the cheapest price possible, go for a no-frills compact vehicle (or something else that's unlikely to break the bank).