Product Spotlight: Bosch Motorsport CAS-M Light
In circuit and endurance racing, what's coming up behind you can be just as important as what's in front. Blind spots, mirrors that vibrate into uselessness at speed, and the sheer concentration required to drive at the limit - it all adds up to a genuine safety risk when a faster car is closing in. The Bosch Motorsport CAS-M Light is designed to take that risk seriously, giving drivers a reliable, real-time warning when another vehicle is approaching from behind.
The CAS-M Light is one of Bosch Motorsport's rear collision avoidance systems - a compact, motorsport-grade solution that detects a closing vehicle and alerts the driver before a potentially dangerous situation develops. It's the kind of technology that's become increasingly important in circuit racing, and absolutely essential in endurance racing where you're sharing the track with multiple classes of car at very different speeds, often in the dark or in poor visibility.
Mirrors in a race car are never perfect, vibration blurs them, bodywork limits the field of view, and at the moment you're most focused - deep into a braking zone or mid-corner - checking them is the last thing on your mind. That's precisely when a closing car is most dangerous.
The CAS-M Light removes that vulnerability. The driver gets a clear, immediate warning through their cockpit display the moment a vehicle is detected closing from behind, giving them the awareness to adjust their line, hold their position, or simply be ready for a car arriving at speed. In endurance racing especially, where fatigue, night driving, and mixed-class traffic all compound the challenge, that kind of situational awareness can genuinely prevent accidents.
Beyond pure safety, there's a performance benefit too. Drivers who trust that they'll be warned about approaching traffic can focus more fully on their own driving - less time glancing at mirrors, more time focused on the track ahead.
For teams running in any series where rear collision awareness is becoming a regulatory or safety requirement, the CAS-M Light is also a straightforward, proven way to tick that box without a complex installation.
Key features:
Rear Radar Detection The CAS-M Light monitors the space behind the car using radar and detects when another vehicle is closing at speed. Rather than relying on the driver to catch a glimpse in a vibrating mirror, the system does the work for them, keeping the drivers focus on the track ahead.
CAN Bus Cockpit Display Integration Once a car is detected behind, the system sends a warning signal directly to a cockpit display LED lights. That means the alert shows up clearly in the driver's eyeline, on the same display they're already looking at. Universal CAN interface which works with various displays.
Compact & Motorsport-Ready True to Bosch Motorsport's engineering standards, the CAS-M Light is built to survive the heat, vibration, and punishment of competitive racing. It's a small, lightweight unit that packages neatly into a race car.
Designed for Multi-Class Racing The system is particularly well-suited to environments where speed differentials between cars are significant, exactly the kind of situation you encounter in endurance racing, where a GT3 car and a prototype might be on the same piece of tarmac at very different speeds.
In a sport where every advantage matters and safety is non-negotiable, the Bosch Motorsport CAS-M Light is a genuinely smart piece of kit. It's simple in concept, serious in execution, and could make a real difference when it counts most.
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