I had one that plugged into the lighter (not to keep the coffee warm)and the arm extended outwards and was adjustable.I think i bought it at Canadian Tire.
David
http://FirstGenFirebird.org/show/closeup.mv?CarID=571 If i don't get this car back on the road soon i'm gonna go postal! On a quest for FGF knowledge 1968 Pontiac Firebird Convertible 1969 Oldsmobile Cutlass "S" Convertible *Sold*