Australia's new vehicle sales hit a record high in July, with top-selling Chinese brands helping sustain a second consecutive month in which electric vehicles made up one-fifth of the market, according to latest analysis.

The $11 billion company behind Carsales says the second-hand electric vehicle market is growing rapidly, as Chinese brands such as Zeekr and Jaecoo arrive.

Australia's new vehicle sales hit a record high in July, with top-selling Chinese brands helping sustain a second consecutive month in which electric vehicles made up one-fifth of…