Stuff the property - stick with the depreciating assets instead. You know you can't take the unit for a cruise down the main drag when you've got nothing else to do on a Saturday night.
Changing the wheels to give you a different feel about how the car looks takes 20 minutes - it takes a week to change the colour of the walls.........
Seriously - buy the property. Rent out spare rooms (for cash) if you can & don't ever you do sell the cars. You can park them up and come back when money is available - gee if I followed this advise and didn't get married I'd be a millionaire with 2 GT Falcons........