Victoria's newly minted premier has left the door open to review a contentious rail line worth tens of billions of dollars, but vowed not to rip up signed contracts. (Penny Stephens/AAP PHOTOS)While he hasn't made any commitment about the loop's future, Mr Carroll left the door ajar for a review. Advertisement AdvertisementAdvertisement AdvertisementBut in question time, Mr Carroll was coy when asked if he would cancel construction of Labor's signature project. Advertisement AdvertisementAdvertisement AdvertisementMr Andrews echoed the sentiment as he congratulated Mr Carroll and hailed Ms Allan, his former factional ally deputy. "I believe premier Carroll and his team can win in November," he said on Wednesday.