Spelling: yes, probably Béquet.
Maurice Béquet was test pilot at Blériot's during the war, and one assumes he got to know the H-S V8 engine there as Blériot LXXI, LXXIII, LXXIV and LXXV were all powered by various versions of it.
Top photo, as you say, as it reappeared in Nigel's hands still on very ordinary 550 × 19 tyres that were rather under-capable with all that power. I seem to remember that the gearbox had somewhat unsuitable ratios, but the careful use of wheelspin helped minimise the problem.
This is it in more recent times with slightly smaller wheel diameter and wider tyres that still don't look too anachronistic.