All options on the VX had to be bolt on. There is no way they could charge what it would cost to recoup the engineering and change the assembly line to sell what, about 1,000 sunroofs? I know it was partially handbuilt, but we only got one tranny too. It certainly can be added, but it can be pricey. I agree with last turbo, performance mods result in more fun for the dollar. If you can competently do all the work yourself, and it will only cost you $100, I'd say go for it if you have the time, but it will be a lot of time. I'm impressed at how well my aftermarket job looks and functions. It definitely looks stock.

As far as luxury, most people add a cupholder, What, you don't like the square cupholder? Mod your truck however you want yours setup. If you have the time and the skills, it is a nice feature.

Nothing wrong with my SC performance either. I'm quite happy with it even at altitude. I couldn't tell you the brand of it, but it keeps me grinnin'.