Okay, for the modern sports car/wind farm speed trap I boosted up the Audi TT and didn't get close. Then the Cayman, and got to a bit over 200 but nowhere near enough. I didn't try engine swapping either, though. So I decided to get absurd with an extra 2016 Miata and the race rotary engine swap. According to the gear settings I should be able to get over 250MPH, but for the speed trap I got to a mere 218MPH. I'm thinking I'll skip this one unless I get the 2019 911 or something. On the upside, an ND Miata with a rotary racing engine is weirdly amusing.
I haven't tried the team challenge. I got a bit annoyed last time around, which I tried although I already had the Lancia. We seemed to be doing well until two people rammed teammates. So pfft, some people.