I've had a search, but can't find anyone that has added an extra handle or door pull to their car? I'm sure I'm not the only person that finds the position of the interior handle completely ridiculous. Living near the sea it is very windy and at some points I think an extra handle located at the other end to the OEM one would be useful.
The Porsche Boxster Spyder has this fancy arrangement:
The Porsche Boxster Spyder has this fancy arrangement: