A test drive is a test drive if you say you want to drive it on motorway for X reason then should be no issue.
If they say no then I’d be like well i ain’t buying it, cya.
Most test drives, they on your own now because of covid.
I also do regular motorway mileage and was one reason the 1.ol civic was not an option. plus for us as a family of 4 now and a dog, jazz is just a bit small.
Cannot say i have looked into the jazz much but seen it on the honda site and dealers (older one) and is a hybrid now.
Everytime i have gone for test drives there has always been a clear winner from how they drove. after narrowing them down, usually to 2 cars from stats and my needs at the time.
Although last time I only drove the honda and corrolla was the other option but the boot was just not big enough, so didn’t bother. This time mpg wasn’t one of the big factors but in the past it has been.