Car clipped before family killed in Llyn Clywedog, court told
An impatient driver clipped a car while overtaking, sending it careering into a reservoir where four members of the same family died, a court heard.
Denise Griffith lost her husband, mother and two foster sons in the incident at Llyn Clywedog, near Llanidloes, in April 2011.
Gordon Dyche, 24, denies death by dangerous or careless driving.
Mrs Griffith told Caernarfon Crown Court the family had been on a day out while on holiday in Powys.