having them use their car for develpment? They don't dare ask, customers generally volunteer their cars. If you are suggesting that the price of the car is the main reason for the outrageous price of the kit, I disagree. They can sell the car with the kit and recoup all of their money and then some, which IIRC MTM did just that.

2008 AVUS RS4 Silver leather/CF, iPod adpater
Magnaflow exhaust
Milltek downpipes
Huper Optik Tint and 3m Clear Mask

2007 Q7 Quartz Gray
Stock for now