1965 Jaguar E-Type 4.2 Litre.
Without removing the front chassis frame, the only way to get the engine and gearbox in is at this angle.

The front chassis frame of the E-Type can be clearly seen. It is strong and light and on this car it is in good condition. However, it can easily be bent if you hit a kerb at speed. When this happens you have to strip the whole of the front of the car and replace the damaged section - not a cheap exercise.