Bmax 2mr V3 any good for indoors carpet & outdoor astro?

[Andrius]

hi folks.
Choosing new car for indoor carpet race. Wondering Bmax 2mr v3 any good? Other manufacturers claims some details about chassis +8mm, saw online some even +11mm longer. However yokomo doesnt says about that at all. Is it +8mm by default or just shorter chasssis? What upgrades requires v3 to be competitive? how easy to get spares and parts lifespan any good? much appreciated