Well then he's just lazy and doesn't want to deal with you, or he has something to hide, and you're asking too many questions.

I would just disregard that guy, there are other people that are willing to answer your questions out there.

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Current cars:
2000 ML55 AMG, 174k miles
2003 C240 T-Modell, 202k miles
1995 S320, 207k Miles