On a day of tit-for-tat, Lotus' latest salvo has been to release a picture of their E22 just minutes after McLaren's official launch.
Perhaps in a mood after reportedly losing Boullier to McLaren, Lotus pipped McLaren's big day by announcing the departure of the Frenchman.
That was followed by a tweet asking fans if they were "already tired of the #McLarenMP429 launch" and urging them to stick with Lotus.
However, it didn't stop there.
Less than four minutes after McLaren unveiled their new car, Lotus released a picture of their's.
Feeling a bit put out are they?