Restriction should give you more much more... I was getting 150 - 170 restricted then de restricted was getting 120 normal riding about ~100 thrashing.
R6 gets about 10miles per £1.. if you use the power band lots that changes....
Dont even ask about the car
Id say look at ur plugs get ur wheels off the floor and make sure they spin good n propper. Check your tyre pressures and keep that chain lubbed!