Mupepe, I tested out the newest SLK but I didn't like how it handled. It's too laid back for a sportscar. My aunt bought one though, which confirmed my suspicion that it's made for older drivers.
Im not so much talking about add on trim and exterior stuff - im talking add on tech, handing and control stuff. BMW Nickels and dimes you more on stuff that Infiniti just includes.
The alternate AT/MT transmission with the paddle shifters in my model is very important to me - its not included in the base G35 or G35 voyager packages.
But even with all those add-ons, I bet the G35 still doesn't handle as well as a stock 335I. Also, tech add-ons usually detract from the driving experience. Pure manual is the best way to go if you're a good driver.