Get the 240. Mine is more "fun" to drive than the 300e and the lack of HP is not really a problem with the stick. Only downside is extended high speed (relative for 68 hp (80mph)) due to noise from motor at high rpm.

Good luck and enjoy.

p.s. keep an eye on hydraulic fluid level for brake/clutch reservoir as older 240's often leak in clutch components as noted before. (If the level drops too low, you can't move clutch to engage gears without bleed and refill)

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2008 GL320CDI 6K
1970 280SL 112K
1982 240D 210K (Sold)
1973 220D 220K (Sold)
1967 200D 160K (Sold)
1992 400E 139K (Sold)
1988 300E 148K (Sold)
1987 300D 257K (Sold)
1991 300E 108K (Sold)
1987 300E 131K (Sold)
1978 300D TMU (Sold)
1980 300D TMU (Sold)
MBCA Member