Opposition Leader Tony Abbott has played down a new opinion poll showing that the Coalition could win an election in a landslide if Malcolm Turnbull was leading the Liberal Party.

A ReachTel poll for the Seven Network released on Friday shows the Coalition leading Labor 58 to 42 per cent, on a two-party preferred basis, with Mr Turnbull at the helm.

Opposition Leader Tony Abbott and Coalition communications minister Malcolm Turnbull. A new poll shows the Coalition would win the election in a landslide with Mr Turnbull as leader. Credit:Andrew Meares

With Mr Abbott in charge, the Coalition lead narrows to 51 to 49 per cent.

The poll also shows Mr Turnbull leading Kevin Rudd as preferred prime minister 65 to 35 per cent against the Labor leader's 52 to 48 per cent advantage over Mr Abbott.