Here’s Superfast Matt’s video on retrofitting an electric brake booster, in case difficulty was your concern.

Anti-roll bar tuning, deeper dive on understeer and oversteer contributors/tuning by a roadcar suspension specialist

It could be that Murray likes a weight distribution so far rearwards and rear corner springs stiff enough that adding a rear anti-roll bar would require a front anti-roll bar that’s too stiff for his liking. He may also prefer to err on the side of understeer more than other sportscar designers.

… we were told by chief engineer Nik Hoyle that, “there are two things Gordon loathes above all: rear anti-roll bars and cupholders”.

Interesting - I wonder what the effective roll rates on each axle are.