You don't see a lot of special construction vehicles running at the miles. If you want to run short course pavement you will be building a compromise vehicle that will need changes to run the salt. If you want to run pavement, build for that purpose, if you want to run the salt, the build will be quite different.
With a good chute we take a mile to slow the car from 200 to 50 or so...
Go to the mile and check out the cars.