Well lets be realistic it's never "worth" it. I've built numerous cars and never once got the money I put into it back. So value wise, no. But for me the fun is in making the car mine. So for me the bragging rights of having the only twin turbo 4.8i running 11's would be a huge value. A lot more than saying I have a X5M running 11's. Could it be cheaper to just get an X5M? Maybe but where is the fun in that.

I'd rather buy a $2,000.00 car and spend $18,000.00 into it than buy a $20,000.00 car but that's just me. It's like a guy having an 1100hp Jeep SRT8, sure he could have built an 1100hp Charger SRT8 and been faster in the 1320 but that's been done before.