Ernest Henry is one of the great engineers and he can be considered the father of the four-valve engine. After designing Grand Prix and Indy winning cars for Peugeot, he joined Ballot in the late 1910s. Among his best designs was this Ballot 3/8 LC. The Ballot engine designed by Henry featured the first fully enclosed valve-train, making it the first truly modern engine. The cars were raced on both sides of the Atlantic and this one won the first ever Italian Grand Prix, in 1921. Following a lengthy racing career, it remained hidden away in a British collections for many decades. It has now resurfaced in beautiful original conditions and was shown at Villa d'Este and Goodwood. Also featured is the sister car, which debuted in the 1920 Indy 500. It is today part of an American collection and will be raced later this month at the Rolex Monterey Motorsports Reunion.
Also set to star on the Monterey Peninsula is this Maserati 6CM, which has been consigned to the Gooding Pebble Beach Auctions. This particular car was raced with considerable success in period and has more recently starred at Pebble Beach. It is on offer with a pre-sale estimate of $1 - 1.4 million.
After the Maserati brothers left the company they founded, they built some spectacular cars under the OSCA moniker. We were treated to a particularly lovely example at Villa d'Este in the form of this MT4 Vignale Coupe. This lovely machine featured a unique design penned by Giovanni Michelotti and built by Vignale. In period it was raced to a class victory at Le Mans and more recently was in longtime Japanese ownership. The one-off MT4 Coupe has now returned to the limelight for all of us to enjoy.

Enjoy the links:

1920 Ballot 3/8 LC - Images, Specifications and Information

1937 Maserati 6CM - Chassis 1540 - Ultimatecarpage.com

1952 OSCA MT4 Vignale Coupe - Images, Specifications and Information

2017 Volkswagen Golf R - Images, Specifications and Information