No not the Prius.
One runaway was a bankrupt porn site operator that faked his prius runaway to pay his debts and retire on Toyota money. The event recorder on his car showed he had accelerated to speed then rode the brakes more than 100 times to try to burn up the brakes.
The other was the little old lady who swore she was hard on the brakes when her Prius ran away, but the car event recorder showed that she was really hard on the gas from the time she shifted into drive untill she hit the stone retaining wall.
In both cases, the only computer trouble was with the organic computer between the drivers ears.