Yeah, it's a Bburago F40 and an old Maisto Diablo. It was these cars that got me hooked on diecast back in 1991 or so. The Bburago F40 was my first-ever diecast, and I was blown away by its detail at the time: actual latches on the boot and engine cover! Diecast have come a long way since then, but the Bburago was fairly impressive to me in 1990 or 1991. I do think they did a nice job capturing the outrageous shape of this car.
The 1:1 versions of the F40 and Diablo are also what made me a fan of supercars. I still remember my jaw dropping when I first saw the Diablo on the cover of Motor Trend. The photos below are my favorite views of that car: closeup on the front wheel and nose from the side, and front view with the rear intakes visible. I actually don't mind the old Maisto casting, but I'm still planning to get an AutoArt Diablo 6.0 later, and a Kyosho F40 to go with it.
The side mirrors on both these cars are among the worst crimes of diecast history. But I really like the fact that they made the Diablo without the optional wing. It's a distraction when there's a wing on a Diablo. (Not so for a Countach in my opinion.)
In the meantime, while I bide my time and save up the dough for the premium models of these two cars, I do enjoy my budgets. These two were improved by a bit of touchup with a black paint pen around the windows and windshield.