As far as I know,only track where F1 and F50 lapped is tsukuba where F1 was quicker even when the conditions were not ideal for hot lapping.As far as Estoril lap goes,it is faster than a corvette ZR1 when tested by Turbo mag.
Tsukuba times
F1 1;04.62 F50 1;05.81
Estoril time
F1 1:55.9 Zr1 1:56.42
Since you guys know much more about F1 than I would ever know,I wanted to make sure if the info I read was correct.