Company Vehicle purchases

Hi All

I'm wondering if someone can assist in the best way to record the purchase of company vehicles for a painting company in BC.

-This is a sole proprietorship, they buy and sell their vehicles every couple of months, these vehicles are always used and under $5,000.00.   Would I just record as Vehicle expense and not worry about CCA and the depreciation because they change so often?

-I have just started entering this company into Sage 50 as of January 2017, they had three vehicles at the start of 2017. How do I enter these into the books for the record.

-they've already sold two and have purchased another used vehicle.

Thanks

Jan