Those are so huge you probably wouldnt be able to get them into tight spaces anyway, even with a short anvil.
I'd rather have the short anvil--I almost never need to use an extension with a 1/2" impact. Deep or universal sockets get the job done for me 99.9% of the time.
Exclusively for tires? It'd probably work fine. But if you're not working on dual wheels all the time, do you really need the extended anvil?