https://www.trekbikes.com/us/en_US/b...mane/c/B221-6/
I know gigant already has an electric road bike... but is an interesting topic.
While on the one hand, having electric assistance is definitely against a "purist cyclist", I get the idea is a good option to have for long or very tough rides.
I do wonder if using the e-bike can decrease your performance on a regular bike... or feel you "suck" in a regular road bike.
This Domane gives assiatance up to 28 mph... which is higher than most people's cruising speed on a road bike.