I love the software, especially now that I'm really getting into programming my LEDS for warning lights and so on. But I would absolutely LOVE to see just what the title says.
Some more lap time stats:
1. Delta to last lap / pace
2. Delta to personal best, optimal (session and all-time)
3. Delta to best sector (session and all-time)
Specifically I'd love to see this supported in rFactor 2 and Assetto Corsa.
For me, I've only had the luck getting the "Delta to best" in rFactor 2, to work. And that's fine when you're alone on track, or fastest on track. But especially if you're running a multi-class event, it's useless.
Anyway, I like the software as is, I'd love to see it improve!