Originally Posted by
RubeRad
That's a fair point, in which case I would argue that the house-showing-car is a business expense
At the very least a part of the car expense is tax deductible. If you ONLY use the car to ferry clients around then 100% of the car's costs are deductible. If you use it as a personal car you can deduct the work miles, and if its' primary purpose is as a work car you can possibly pro rate the overall costs of the car as a deduction.