This requires you to complete all but one of the speedlists on the racer tree. Once you complete level 20, you can go back and redo the others one by one using the "Career Overview" screen. This will take time, but persevere!
The car I used most often was the Ferrari F12 Berlinetta. While slower than the other Heat 4 cars, the massive increase in durability more than makes up for it. I only swapped to the Mclaren F1 for Speedlists for which durability was irrelevant (Time Trials, Races, hit X speed, jump x distance).
The tech I used was ESF / Shockwave. I found turbo, once upgraded, lasted too long with no way to cancel it, so I just ended up crashing more than I survived. And killing every other racer is SO much more satisfying!
For distance jumps, the large bridge on Kingfisher road (near the centre of the map) has an easy 250 yard+ jump if you use turbo. Just come from the south side, and it'll be the second path down below on your left.
For the perfect turbo / perfect nitrous, just come to a complete stop before using. Find a straight with a repair shop, and use it without hitting the accelerator. Much easier to avoid crashing into anything! Good luck!