Do you want to be forced to feed it premium fuel to get the full power? They may even require premium or 91 minimum. That's something to consider with any boosted engine.
I've been to a lot of middle of nowhere stations that only had the low octane stuff. That'd really suck if you were pulling a heavy trailer at high elevations and your small displacement, boosted engine backed the power way back because low octane was the only thing you could get and it way trying to keep from self destructing.
I think the biggest improvement has been the transmissions. Even 18 wheelers couldn't do what they do with a four speed, they need the gears to keep the power on tap.
The story of three wheels and a man...