The regular 635s were mostly sold in auto flavour, although some were specced with a manual 5-speed gearbox with a dog-leg pattern.
This car is a M635 Adam (sometimes referred to as an M6) which has the powerplant of the iconic BMW M1 (3.5 litre 24v M88 engine) coupled with a 5-speed manual gearbox with a regular gate. M635s only came with manual gearboxes.