Arp 400-7507 - Hex Valve Cover Bolt Kit on 2040-parts.com

The AutoWeek List: Top 10 favorite engines available now

1. Audi 4.2-liter V8 Specs: 420-hp, 317 lb-ft Found in: Audi R8 Our take: One the most flexible performance V8s available. 2.

McLaren MSO reveals MSO 650S Coupe Concept

The McLaren 650S MSOP Concept (pictured) showcases McLaren’s custom options It’s only a few months since we had a McLaren MSO 12C Concept from McLaren Special Operations (MSO) – Maclaren’s division that titivates cars for a significant wad of cash – to showcase just what MSO can do for the 12C. But with McLaren deciding that the 12C is biting the dust in the face of the new 650S, it’s time to update that concept to one that’s current, hence the arrival of the McLaren MSO 650S Concept. The changes to the 650S by MSO are designed to illustrate what McLaren can do to make your 650S as individual as you are, and the updates included on the concept can be applied to both the Coupe and Spider versions of the 650S and even the 12C.

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.