An accountant can look at your financials, your projections, and your estimated vehicle usage and tell you if leasing is better than buying. For most people, it is. But sometimes it makes more sense to have the company pay you per km (tax free up to an amount). Other times the company buys it and writes off depreciation.
If any of your businesses are moving towards being serious, get an accountant. If not, lease it.
And always keep a log book in your car, be generous when filling it out. Even a 2km drive to a gas station. Make it a habit to write in that book every time you get in and out of the vehicle. One audit will make it all worth while.
I can eat more hot wings than you.