Lane-hogging and tailgating are the things that annoy motorway drivers the most in the UK, according to a poll.
Motorists also moan about drivers who change lanes without indicating, the survey of 2,777 drivers by Castrol found.
Other pet hates include erratic or unnecessary braking, over-taking on the wrong side (undertaking) and slowing down to look at an accident (rubbernecking).
Although only three per cent said they found undertaking annoying, as many as 33 per cent confessed to doing it themselves, while 25 per cent admitted changing lanes without indicating.
A total of 20 per cent of men and 12 per cent of women owned up to weaving in and out of slow-moving traffic, while 12 per cent of all drivers admitted tailgating and 14 per cent rubbernecking.
Drivers of 4x4s and lorries upset other motorists the most, while 24 per cent of women but only seven per cent of men felt stressed driving on motorways.
Factbox
Most irritating driving habits on motorways
1. Lane-hogging/middle lane slow driving
2. Tailgating
3. Changing lanes without indicating
4. Erratic or unnecessary braking
5. Talking on a mobile phone without hands-free
6. Cutting across lanes because of lack of preparation for junction
7. Drivers not letting you join the motorway from the slip road
8. Rubbernecking - slowing down when there is an accident
9. Undertaking
10. Vehicles weaving in and out of slow-moving traffic.