Definitely starting to impact the market. People need to be careful though. Are you better off getting a 2018-2019 ex rental for ~ 30% off that's been thrashed and potentially abused or negotiate 15%-25% off a brand new / or near new ultra low mileage demo vehicle ? Does the balance of the manufacturers warranty apply to ex rental vehicles given they were used commercially in the first instance ? (Make sure you get the answer to that in writing as a condition of the contract and don't take anything a salesman tells you verbally as sufficient assurance).
I'd go the brand new with a decent negotiated discount route or heavier discount for very low km demo route myself, but each to their own.