2 types of sensor, mechanical and electrical, plus the array of fittments required make it impossible for them to sell a car specific kit.

You buy the basics and then add on what you need.

What type of set up are you thinking as that will depend on the price.

The 700 series (1 round pod) are obviously cheaper than the 8000 series (triangle type gus mentioned)

The 8000's are being superseeded soon so you could get one cheaper if people start to sell them off to make way for the newer ones