Doesn't sound unreasonable. If the 2.5T is rare in the U.S., it is even more rare in CA, where it wasn't sold. I think I've seen two in seven years in and around L.A. Don't think you'll find a better car for a better price.

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'91 300D 2.5 Turbo 330K
'00 VW TDI Golf, 190K
'67 BMW R50/2
'73 Norton Commando Interstate