- Formula 1 bans active aerodynamics on the narrow streets of Monaco.
- NASCAR upholds a heavy playoff points penalty against Ryan Preece.
- IndyCar shifts focus to the technical downtown Detroit street circuit layout.
From crucial regulatory shifts on the historic streets of Monaco to scheduling and appeal rulings across Detroit and Nashville, which teams face pivotal challenges in the days ahead, all have been covered today on Read Motorsport.
Here’s what we have learned so far today…
Formula 1
The upcoming Monaco Grand Prix faces a major technical shake-up following the FIA’s decision to ban the use of the 2026 active aerodynamics system, known as “straight mode”
The governing body has ruled that the track’s narrow parameters and slow, traction-heavy corners fail to meet the strict safety criteria required for activation, notably failing the minimum three-second straight-line zone duration rule.
Mercedes have dominated the opening five rounds of the 2026 championship, with Kimi Antonelli securing four victories and George Russell one. However, their straight-line power advantage will be neutralised in the principality.
The temporary regulatory shift opens a window of opportunity for Ferrari and McLaren, whose shorter-wheelbase chassis dynamics are expected to excel through Monaco’s slow-speed sectors without the influence of dynamic wings.
NASCAR
The National Motorsports Appeals Panel has upheld the penalties issued to Ryan Preece and the No. 60 RFK Racing team following an aggressive on-track incident at Texas Motor Speedway.
Preece was heavily penalised with a $50,000 fine and a critical 25-point deduction after in-car radio audio revealed a deliberate intent to compromise competitor Ty Gibbs, who subsequently crashed.
Despite the panel’s 2-1 majority verdict confirming the punishment and dropping him to 16th in the Cup Series standings, Preece remains unfazed. Ahead of this weekend’s round at Nashville Superspeedway, the veteran stated his intent to remain entirely on the offensive.
Practice and qualifying for the weekend’s marquee Cup Series race, the Cracker Barrel 400, are scheduled to stream via Prime Video on Saturday ahead of Sunday evening’s main event under the lights.
IndyCar
The NTT IndyCar Series shifts its focus from the high-speed oval of the historic Indianapolis 500 to the technical constraints of municipal street racing for the Chevrolet Detroit Grand Prix.
Track action on the tight, 1.65-mile downtown Detroit circuit starts today with initial practice sessions, paving the way for Saturday’s qualifying session.
Unlike the damp, rain-threatened forecast looming over NASCAR in Nashville, weather conditions in Michigan are predicted to be optimal, with minimal risk of rain.
Sunday’s final 100-lap street race will air live on FOX in the US and on TNT in the UK, and will be a critical mid-season test for the 2026 championship contenders.
