I wouldn't bother with the W201 Sportline seats, they look more comfortable than they are. It took me quite some time to find a seat position in my 190E Sportline that did not cause lower back pain on a long journey. I find the seats in our W124 300TE to be more comfortable, although they are electric and the driver's seat has the orthopeadic backrest (with inflatable cushions that make use of the central locking supply pump).

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107.023: 350SLC, 3-speed auto, icon gold, parchment MBtex (sold 2012 after 29 years ownership).
107.026: 500SLC, 4-speed auto, thistle green, green velour.
124.090: 300TE, 4-speed auto, arctic white, cream-beige MBtex.
201.028: 190E 2.3 Sportline, 5-speed manual, arctic white, blue leather.
201.028: 190E 2.3, 4-speed auto, blue-black, grey MBtex.
201.034: 190E 2.3-16, 5-speed manual, blue-black, black leather.