I have a friend of mine who has brought several Mercedes and BMWs into the US. It is VERY expensive, and very time consuming. It takes at least 9 months to get the "upgrades" done, and it can cost from $10-20K to have them done. He brought in a BMW 850i and by the time he had it in hand, the prices had gone down to the point he could have bought a US spec car for less money!

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Bill Streep
San Antonio
'57 190SL (toy)
'08 S5500 (mine)
'09 CLK550 (wife's)
'06 SLK350 (daughter's)
'11 GLK350 (daughter's)
'03 CLK310 (spare)