Racing with my team mates, we also noticed that some cars (open wheelers, GT3/GTE cars) handle differently than they did at launch after the huge FFB update. And we're all playing on pads, but we were knocking 1-1.5 seconds off previous laptimes easily, and had more grip even when launching off corners like the dreaded in 1st gear.
But it may be just the good, old fashioned placebo effect.