New Car shopping - advice appreciated!

[mcmn]

Hi all,

I'm lucky enough to be in the market for a new car! Unfortunetly, the R35 GT-R, BMW M3 are a little out of the price range, so I've settled on looking at more realistic targets

I'm currently weighing up the options but would appreciate some views on my decision to persue 6 turbo over the s/c 8.

- Car will be driven daily.
- Ideally would like to modify the car to be capable of low/mid 11s 0-400. I would like for this to be done progressively (i.e when the wife looks the other way).
- Note brakes are important too - the brembos on the F6 look good!
- Car will be auto (the wife )

Given the above - is the 6turbo a viable option? Will it cost me more or less to get low/mid 11s performance from the turbo over the s/c 8?

Is there a remarkable gains on the F6 over the XR6T, G6ET? If my plan is to modify the engine in the longer run, is my money better spent on modifications, or does the F6 package remarkably change to base?

Can anyone link to threads that outline example/approximate path and cost to modify the standard F6/G6ET to low/mid 11s?

Appreciate the assistance! There is a lot of content on this forum that I'm currently navigating my way through!