Example welcome email to new users that can be used in a challenge context:
Hey <User>, Welcome to <Challenge>!
Congratulations, you are now part of <Challenge>. We look forward to helping you travel smarter by providing the easiest, cheapest and of course the cleanest transportation solutions. All while earning the chance to win prizes.
Whether you need to find a carpool or a better transit route, we hope you’ll use us as your one-stop-shop for all your traveling needs. All you have to do is enter where you are and where you want to go. It really is that easy.
If you’d like to create your own challenge team/network, e-mail firstname.lastname@example.org. And as always, make sure to travel safely!