My 2011 double cab 4.6 runs real nice. Crewmax has more room in back than mine
Crewmax only has 5.5 foot bed (double cab has 6.5 foot)
4.6 and 5.7 are both timing chain, double overhead cam engines
Mine is about 15 mpg
It is big, I park in straight through stalls. I have the BU camera.