Police accident investigators concluded that Brockhouse had oversteered
on the sweeping left-hand bend of Roanne Ringway heading towards Queens Road, and lost control.
He claimed Alison, 35, tried to correct the movement but oversteered
into the front corner of the minicoach, belonging to Midlands, of Auchterarder.
Mr Timothy Mayer, defending, said: "He admits he oversteered
and ultimately lost control with the unfortunate consequences.
Consultants engaged by Ms Hodgetts said the defect would have caused the brakes to lock, while those for Jones Bros claimed Mr Thomas had probably oversteered
on the bend.
Police accident investigators said the wet road surface was a likely factor in the crash, but couldn't determine whether Mr Parker was driving too fast or had oversteered
Kevin Hegarty, defending, said: "In a moment of error of judgment Brockhouse oversteered
the car and it went across the road and the car ended up against the tree.