Extended 50mph speed limits begin on the M4 today.
They will also apply on selected roads in South and North Wales in a bid to reduce exhaust pollution by smoothing out traffic flow and reducing speed.
The Severn Tunnel will be closed for the next three weeks.
It will add about 40 mins to rail times around Gloucester while essential work is undertaken to electrify services, but some services will be replaced by buses and no through services will stop at Bristol Parkway.
Welsh automotive suppliers will learn how they can best work towards and in the future motor industry during Autolink 2018 on wednesday at Cardiff City Football Stadium.
The Welsh Automotive Forum event will have speakers from Welsh Government, SMMT, PwC and Swansea University.
After a €1 Billion fine by Germany prosecutors, VW is now facing further penalties from individual federal states in its home country for breaching emissions laws.
The authorities are looking into action against Bosch, Porsche and Daimler as well.
Europe’s new car sales were fairly flat in May at 1.44 M.
Thats very slightly up on 12 months ago but this year it has been affected by fewer working days in the month due to religious breaks, but some luxury brands saw a significant drop.