Leading-Edge Motorsport Technology Since 1990
September 2019 • Vol 29 No 9 • http://www.racecar-engineering.com•UK£5.95•US$14.Porsche 911 RSR
The all-new racer that will shake up GTE
Bloodhound returns
AeroguruRonAyerson
supersoniccarstability
WRC 2022 rules
Is rallying ready for hybrids,
spaceframes and SUVs?
Toro Rosso STR
How a fresh approach to
F1 design has paid off