Track width $1200$ mm$,$ wheelbase $1430$ mm$,$ unladen weight $690$ kg$,$ loaded weight $1500$ kg$,$ tire $165/65/$R$13,$ Brake master center $28$mm$,$ Front$/$rear brake center $42$mm$,$ Engine power $10$kW$,$ engine torque $90$Nm$,$ Diff cycle ratio For a $4-$wheel electric light mobility vehicle with $8\mathrm{.}5/1,$ engine speed $5250$ rpm$,$ front$/$rear load distribution $40/60,$ battery capacity $10\mathrm{.}4$kwh$,$ external electrical load $1\mathrm{.}2$kwh$,$ acceleration $0\mathrm{.}2$m$/$s$^2$ Can you calculate the maximum slope with load and without load?