Just checked the option codes on the engine number plate here:

http://www.geocities.com/MotorCity/Speedway/5350/mbcodes.htm
http://www.bekkoame.ne.jp/~mtor/mbcodedsc.html
http://www.mbclub.ru/mb/code/?lng=eng

BTW my engine is catalyzed(option code 620), yet it's tuned to 125kW/170hp. This makes it only 10hp less than a full 300E 3-litre, yet with substantially lower insurance and tax costs

Es lebe der Sportline!

~Nautilus

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1990 260E Sportline (that's 300E 2.6 for our American friends) -> sold
2001 E320 4Matic Elegance -> my Dad's daily drive
2005 Seat Leon FR 1.8T