Timing chain due at 60K miles on a 420???
On all the V8s used in the 107 body, it wasn't due til at least 100k (all right, we won't talk about the single-row 380). Does the 420 really need it tended that early?
'97 SL500, 40th anniversary edition
'04 Olds Bravada (SWMBO's)
'06 Lexus ES330
'89 560SL (sold)
SL--Anything else is just a Mercedes.
(Kudos to whoever said it first)