Very sad news. He was my favorite driver back in the day. Fast and smooth in anything. In the 1966 F1 season he posted wins driving for two different teams!....the Belgian for Ferrari and the Mexican for Cooper. That year he also won the Can-Am (group 7 series) in his Lola T70. What a driver.
These hang over my work bench...His 1.5L flat 12 Ferrari, and his 500cc MV Agusta.