Misdemeanours behind the wheel are causing chaos on Britain's roads and are at the root of most accidents, according to the RAC Foundation.
Accidents could be avoided if drivers "stopped sinning", the organisation suggests.
The top seven sins, according to the RAC, include speeding, aggression, eating while driving and use of mobiles.
In addition, not checking tyres, running through amber traffic lights and driving after an alcoholic drink were also problematic behaviours.
Such behaviour, if it leads to a driving conviction, could ultimately also cost road users money as they may not be able to find cheap car insurance deals as firms may regard them a hazard on the road.
Sheila Rainger, acting director of the RAC Foundation, said: "A positive attitude and a healthy dose of the heavenly virtues of temperance, diligence, forgiveness and humility will go a long way towards making our roads safer in 2008."
Some 94 per cent of accidents in 2006 were caused by driver error, according to the foundation, which is asking motorists to reflect on how they can personally make the roads safer in the coming year.
Use of a mobile phone while driving can attract a fixed penalty notice at the roadside of £60 plus three points, or a discretionary disqualification and a fine of up to £1,000 fine if the case goes to court.