First I go by the type of car I like ex. Trueno, Camaro, Mustang, Supra, etc. Then the price, if it's too expensive, that's a turn down. Manufacturer, I don't really care for even though Fujimi got me pissed recently, it's mainly about the car, I can deal with the kit problems later. I'll usually not spend more than $30 USD for just the kit, but their are exceptions
.