Darren Weir finally left the Warrnambool carnival with a new car after Akzar thrashed his opposition in Thursday's Listed Cup to snare his trainer the prized bonus.

Weir has several times come close to claiming the Mercedes-Benz car which is offered to any trainer who can prepare four winners at the three-day carnival - provided at least one of them comes in a nominated feature race.

The trainer almost ticked that box on Wednesday with Gotta Take Care in the Galleywood Hurdle but the race fell short of the eight starters required for Weir to claim the $41,000 prize.

He had no such concerns in the Warrnambool Cup after Akzar started with 15 rivals but finished the race on his own as he streaked to a six-length win over Westsouthwest and Shoreham.

Jockey Brad Rawiller had no concerns about racing wide on the worn track, confident the outside half of the circuit offered the best ground.

Akzar was last early but steadily improved throughout the middle stages to be on terms with the leaders early in the straight.

The $3 favourite left his rivals standing at the 300 metres, surging clear to score his fourth win in six starts since joining the Weir stable.

Weir said a training program based on beach work had turned Akzar from a horse struggling for form into a stakes winner.

"He has just clicked with the beach," Weir said.

"If I trained him on a track his form would be as it was before he came to me."

Weir might send Akzar to Queensland for next month's Brisbane Cup but his immediate plan was to celebrate his win with his staff and owners.

The trainer said the team at his Warrnambool satellite stable played a huge role in his successful week with Akzar's victory giving them their seventh win of the carnival.

The Cup result wasn't as happy for on-course bookmakers after punters backed the gelding from $3.60 to $3.

Westsouthwest's trainer Robert Smerdon said his charge was held up but was never going to seriously challenge the winner.