Dorman Harmonic Balancer 594-005 on 2040-parts.com

Win two signed Jenson Button mini crash helmets!

CAR has teamed up with McLaren sponsor Santander to bring you the chance to win one of these ace souvenirs – plus loads more prize opportunities including tickets to next year's British Grand Prix. To win one of the helmets simply answer this question: In which year was Jenson Button crowned F1 World Champion? Click here to enter For more great prizes – including signed merchandise from Lewis and Jenson, VIP tours of McLaren's HQ and 2012 weekend GP tickets  – click on the link below and check out the Competitions tab on Lewis and Jenson's Facebook page.

Government sets drug-drive limits

Plans to introduce a drug-drive limit have edged closer as limits for 16 different drugs have been approved. Eight prescription and eight illicit drugs have been added to the regulations which will be introduced this autumn, meaning it’ll be an offence to be over the prescribed limits. Police ‘spitalyser’ to catch drug-drivers Young people in drug-driving shock Police will be clamping down on people who drive after taking drugs such as cannabis with a limit of 2 micrograms per litre (mcg/l), cocaine (10mcg/l) and ecstasy (10mcg/l) – while people who take prescription drugs like morphine (80mcg/l) and diazepam (550mcg/l) will also have to be careful not to break the limit.

The great British motorway speed limit debate

Associated Press As the government plans a 60mph limit on a 32-mile section of the M1, Britain's speed limits are under the spotlight as never before. The lower limit was announced this week as part of a project to improve air quality in Derbyshire and Yorkshire. If approved, drivers will not be able to exceed 60mph between junctions 28 and 35a between 7am and 7pm.