cars have their place. a pinarello track bike would be nice, but if you already have a bike and need a car, the cost of it may be harder to justify.
i typically commute to work, but when it snows i definitely drive. of course, i just put a vtec motor in my civic and it is increasingly harder to choose a bike over my car lately. i'll probably go back to commuting until the winter starts, but my new motor is too much fun.