and the rear tyre sizes were 280/660-R18 (11.0/25.9-R18) in 2011). The compounds of Hankook Deutsche Tourenwagen Masters tyres are currently only one dry slick compound (standard prime hard) and one wet treaded compound (full-wet only). Option tyres were used as a soft compound in 2013–2014 seasons. Performance According to research and pre-season stability tests, the pre-2019 model can go 0 to 100 km/h in approximately 2.6 seconds. The car had a top speed of meaning that it is the second fastest touring car behind the Australian V8 Supercars. Since DTM switched from traditional classic electronic indirect-injected V8 naturally aspirated engines to fuel-efficient direct-injected inline-4 turbocharged engines since 2019 season, the current model can go 0 to 100 km/h in approximately 2.8 seconds and now has a top speed of and thus outperforming Australian Supercars top speed (Albeit, DTM cars use 102 RON fuel compared with Australian Supercars using E85 fuel. A fair comparison would be both series cars using the same fuel type). Balance of Performance In 2015, Deutsche Tourenwagen Masters introduced a Balance of Performance (BoP) system to improve racing spectacle. The Balance of Performance (BoP) weight regulations specified a car weight allowance range between in 2015–2016, later changed to from the mid-2017 season, in effect being closer to success ballast system used in British Touring Car Championship and Super GT despite the name. The Balance of Performance (BoP) weight regulations were scrapped just before the Austrian race due to several protests and criticisms from DTM teams. Prohibitions Driver aids like ABS, traction control, launch control, active suspension, cockpit-adjustable anti-roll bar and partial car-to-team radio communications are currently prohibited except fuel mapping and Drag Reduction Systems, which can only be used for 12 laps in 2018 when near enough. Driver safety The safety is very important for all Deutsche Tourenwagen Masters drivers. Drivers are required to wear a race suit, Nomex underwear, gloves, socks, boots and headsocks in the DTM. Meanwhile, the helmets for all Deutsche Tourenwagen Masters drivers are made of carbon-fibre shell, lined with energy-absorbing foam and Nomex padding. The helmet type must meet or exceed FIA 8860-2010 certification approval as a homologation for all auto racing drivers. HANS device are required to be worn by DTM drivers since the 2002 season that meets or exceeds FIA 8858-2010 certification approval. Earpieces are also required by DTM drivers to improve communication. Further future of Deutsche Tourenwagen Masters (GT3