This depends on how you are using the auto lift.
If you simply want to store a vehicle in the air and possibly park another vehicle underneath, then a four post lift is the right lift for you. The four post lift has two steel tracks running the length of the vehicle and lifts the vehicle by the wheels. With the four post lift you can park two vehicles in one space, change oil, do some exhaust work, and with the help of your jack tray you can gain access to your tires and brakes. You can also purchase our hydraulic jack which will lift one end of the vehicle while on the lift. With the help of our caster kit, the four post lift is also portable, allowing you to move the lift around your garage or even outside to wash your vehicle. When loading a four post lift you simply drive on and off the tracks instead of having to enter and exit the vehicle multiple times to ensure the correct weight distribution at the lifting points. A four post lift ensures that you will have easy access to open and close the doors of the vehicle.
If you are planning on doing repairs, then a two post lift is the right lift for you. The two post lift engages and lifts the vehicle at four points on the frame of the vehicle. This gives you access to virtually any point on the underside of the vehicle including the wheels. A two post lift is not desirable to use for storage of a vehicle for extended periods of time. You don’t have a way to protect the vehicle underneath from any fluids that may drip from the top vehicle. On a two post lift, the vehicle is lifted by the frame. When in the air, the tires will hang lower than normal minimizing the clearance you have underneath to park another vehicle. A two post lift must be mounted to the floor and is not portable.