CarPlay support can run in the simulator, obviously you'll need to fake the GPS location too for this to be useful. And you need to get special permission from Apple before you can even use the simulator, they keep CarPlay even more locked down than everything else.

https://developer.apple.com/documentation/carplay/using-the-...

Between the three roads on my map I'd have to recommend Cherohala Skyway as my favorite drive. Only done it once, but it's a beautiful fun road with great scenic overlooks. Longer and more relaxing than Tail of the Dragon, and I'd rate it more enjoyable if not as exciting.

That's a car-based opinion though, can't speak to motorcycles.

https://www.visitmonroetn.com/cherohala-skyway

EDIT - a couple questions on pricing:

1) If I do one month on the paid plan to create a route, then cancel the subscription, do I still keep the route I made? Can I share and export, but no edits? Or can I still edit existing waypoints, but not add new ones? Realistically this is something I'd only use once or twice a year so I want to understand how the subscription structure fits with that.

2) How do collaborators work? I'm guessing only the route creator need a paid account, and other people can join it from free ones, but it would be helpful to clarify.

When you're working on the iOS app let me know if you need a beta tester!

thanks for the tips about CarPlay development. I'll definitely target parity with the web app at first so hopefully it'll be something I can get access to eventually

regarding (1), yes, you keep the routes you made even after your subscription ends. the limits revert to the free tier so if it had more waypoints or was longer than that then you just can't add or move waypoints. removing waypoints to get back down below the limit works and you still export your trip to formats included in your tier (e.g. google/apple/waze)

you could absolutely pay for a month just to plan and export all your trips for the year, bookmarking them with google maps or saving the files for your GPS for instance -- not a problem. I am currently exploring alternatives to monthly & annual subscription schedules to further support seasonal usage, too

per your 2nd question, that's correct, only the creator needs to pay to have 2+ collaborators. you can try it out on the free tier with 1 person at first to see if it works for you. if you just want to share maps publicly you can do that without subscribing, too