Yep. Exactly. I would have put one in my Westfield if it wasn't for the fact that it gets so much road use.
Once you've got it rolling they're fantastic. People don't expect a road car to rev to 13k either, so you can play with them up to 6K and, when they think you've run out of revs, unleash the other 7K and disappear over the horizon!
However, first gear ends up a bit high, and the clutch a bit sharp and fragile so it's a nightmare in traffic, there are no truly reliable options for a reverse gear other than not having one and motorway cruising at 9K RPM is a tad tiring, so I went for a breathed-on car engine instead. Somewhere between the two extremes.
As you reduce the weight of a car, a car engine and gearbox in "normal" tune feels more and more mundane.
Kevin