You could always do what this guy did: http://www.dhc.net/~pmhack/mercedes/bomb.htm. I've considered buying a late 70s W116 6.9 and doing the same thing.

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-- Aaron

'87 MB 560SL - 45K
'80 MB 450SL - 180K (Sold )
The rest: '83 BMW 533i - 286K, '04 Ford F150 - 7K, '99 Yamaha YZF-R1 - 10K