The 240D weighs about 3250 curb weight with 67 bhp 97 lb/ft of torque and a 3.69 differential.

The 190D 2.2 weighs 2700 lbs with 72 bhp 96 ft/lbs and a 3.42 differential.

On paper, it certainly looks like the 190D would be faster, quicker, and more economical.

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1987 300SDL (324000)

1986 Porsche 951 (944 Turbo) (166000)

1978 Porsche 924 (99000)

1996 Nissan Pathfinder R50 (201000)