No. That is, if you're referring to the newer internally-geared 7-speed hubs from Shimano (Nexus) and SRAM (S7). Both of these have seven internal gear ratios (like the old 3-speeds on steroids) and a coaster brake. They are installed using a single chainring at the cranks and a single rear cog. So no derailleurs needed. BTW, the Nexus (or its sibling the Alfine) hub from Shimano has been made in 4, 7, 8 and 11 ratios.
for best results, use flame thrower on high power for 3-7 minutes.
The 2003 BMW 3-Series has 54.2 in. of rear shoulder room.
The 2006 BMW 3-Series has 55.1 in. of rear shoulder room.
The 2004 BMW 3-Series has 34.6 in. of rear leg room.
The 2011 BMW 3-Series has 34.6 in. of rear leg room.
The 2014 BMW 3-Series has 55.1 in. of rear shoulder room.
The 2009 BMW 3-Series has 34.6 in. of rear leg room.
The 2011 BMW 3-Series has 55.1 in. of rear shoulder room.
The 2014 BMW 3-Series has 37.7 in. of rear head room.
The 2008 BMW 3-Series has 34.6 in. of rear leg room.
The 2005 BMW 3-Series has 34.6 in. of rear leg room.