190e will need a lot more engine related maintenance. When running nice they are fun cars. MPG will be a lot less with a 190e than 190d. My 190d was originally a 190e 2.3, engine gave it up around 205k, so I swapped in a diesel with 240k on it....still going strong. I've driven it thousands of miles with 0 issues.

The gas ones are more fun because of the performance factor, but expect it to cost more to own and it will need repair more often.

__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)