Ferrari LaFerrari vs McLaren P1 vs Porsche 918 Spyder
They are fascinatingly similar of course, but fascinatingly different, too. All use electric motors to augment the torque and quicken the response of their already copiously endowed engines. All have DSG transmissions. All have carbonfibre bodies and all of them take active aerodynamics into new and brain-scramblingly complex places.
But they all look very different. One has turbos, two don't. Another one has all-wheel-drive, the other two don't. The third one is a pure hybrid, but the other two can be plugged in and then driven for a few kilometers in electric-only mode.