Possibility to get one, guy invested 3.1 m all up.... How much would it be worth now ?

i estimate about 2.3m

Seems like you've answered your own question...

You didn't supply enough info (e.g. condition, color, extras and KM's) so no-one could possibly answer it for you.

However, so long as it's less than 20,000KM, no accidents, no scratches/blemishes in or out, is not gray market (or has been officially adopted by Mercedes Benz TH) it should be worth about 2.1M now, not factoring in any aftermarket fitout it might have...

Thanks ... Ur about right. A friend called one of his, and said about 2m. Generally in perfect order, 7000 km on the clock, July 2011, interior with good seats that slide back far.... Tv, audio, etc.