no not really...
as I said, if car customization is important to you... I doubt you'll like The Run (there may be some in MP... as I said, haven't explored that much yet. But in SP it's basically non-existent.)
Racing wise, it kinda feels the same as earlier entries w/ better gfx. In terms of perceived speed and handling that is.
The campaign basically IS a corny movie... but a fun corny movie nonetheless... especially since it's interactive. Some definite "HOLY SHIT" moments.
I'll need to explore some MP and see what it has to offer there... even though I know I'll get my ass kicked.
From what I've seen in SP, I expect MP modes to have std racing, "Elimination" racing (clock counts down... whoever is in last when it hits zero is eliminated and clock resets) both potentially w/ and w/o police interference (couldn't say, potential is there for it) and I expect some cops vs racer mode.