I own a '13 Dodge Dart. An interesting thing about that car is that the powertrain comes right out of a Fiat 500 Turbo. Which means that basically all the parts and computer upgrades that mad people put onto their Abarth just..fit right on the thing, except that it's got a little more wheelbase, plus back seats someone larger than a 7 year old can fit in, and a 2 ex-spouse trunk.
This lead to some fun times playing upgrade and monkeying with the car (stiff coilovers, new exhaust, new timing, bigger turbo, etc etc)

A couple of years ago, I had cause to drive from Seattleish, where I live, to Spokane, on the eastern border of the state. The first half of that is quite fun, zipping through well paved and maintained mountain roads, the kind that are just curvy enough that you can still be going at reasonable highway speeds, but also bendy enough that it's fun to do so, especially downhill, but once you ease out of those, it's a wide, relatively flat plain, and I90 is a straight shot for the next, ohh..200 miles or so, and has actually very little traffic for an interstate.

Now, not that I say "relatively" flat. It turns out, it's a slight downhill while traveling east. Enough that, when I realized "oh, I'm coming up on that semi rather fast, and glanced down, I *also* noted that the speedo was resting on the peg. Now, it only took 5 or so seconds for that to come up off the peg and slow down, so I couldn't have been going much more than 10ish miles over that upper bound, but unlike the Olds, that Dart has what I *thought* was an overly ambitious upper bound of 130.

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-Pasha
"Don't change the subject"
"Too slow, already did."