In the first season for the new breed of LMDh cars featuring spec hybrid systems in the World Endurance Championship and IMSA SportsCar Championship - in which they compete as GTP cars - the 963 has proven a strong contender.
It has won three of the eight races for which GTP cars have been eligible in 2023, with Tandy and Mathieu Jaminet just five points off the leading Action Express Racing Cadillac in the IMSA standings heading to this weekend's Petit Le Mans finale despite a skid plank infraction costing them victory at Watkins Glen.
While rivals Acura and BMW have been limited to competing in IMSA this year and Cadillac has only run a single car in the WEC - which it announced this week will not be added to next year - Porsche has benefitted from running two cars in both series and put together its strongest performance of the year relative to Le Mans Hypercars by leading Toyota for much of the way at Fuji last time out.
Tandy and Jaminet led a Porsche 1-2 in the most recent IMSA round at Indianapolis, with the Briton welcoming the "massively important" benefit of having additional cars that are "effectively doubling our learning".
Speaking to Autosport, Tandy said this had manifested itself most effectively in understanding how to optimise its package having focused before the season on reliability.
He believes that the team has now figured out the strengths and weaknesses of the 963 package and understood what derives the biggest laptime gain.
"What has really helped us recently is we have double the racing and when you go to the racetrack it’s all about finding pure performance," he said.
Source: Autosport