My most ambitious Alpine project so far : A long sweeping track going through some giant hills for almost 2 mins of driving. The key here is to keep your momentum in every turn, especially the downhills parts, as you will need the speed to get back up in the next section.
I spent a lot of time on the scenery of this, and the track is more meant as an enjoyable ride and eye candy than an epic race, but I still think the route is interesting and very challenging to nail.
I hope you're gonna enjoy driving and hunting this as much as I enjoyed creating it. Have fun !