Toyota and Ford hybrids have been successfully used by cab companies for quite some time now. The old Honda IMA setup was troublesome, but their new setup is great.
It's not like standard gas power trains are simple anymore either--turbocharging, direct injection, and dual clutch transmissions are common, even in affordable cars.
Totally agree, the transmission for the Prius is astounding. It is truly amazing that they replaced everything about past transmissions with a single planetary gear system and it works beautifully.
