When you've found the exact vehicle you want, take the lowest price quote, then call or email the internet manager and make an offer. Even if you received a reasonable price right off the bat, don't be afraid to make a counteroffer for less. It's part of the process, and dealers understand that. Do make sure you stay in the pricing ballpark. Let the internet manager know you've received offers from other dealers and, if needed, refer to a specific quote if there's any reluctance to bring down the price.
Though based on the existing Lexus IS, which debuted for the 2014 model year, you’d need to look closely at the 2021 Lexus IS in order to tell. It’s more obvious on the inside, and the car is basically identical when it comes to powertrains. But Lexus swears it has fine-tuned the ride and handling to make this the most fun-to-drive IS ever. Well, except perhaps for the IS F.