Looking back at the events of February 2022…
There are a few vehicles in World of Tanks where Additional Grousers will improve your top speed more than a Turbocharger would.
I explored the complete list of 1.15 vehicles to pick out these vehicles.
The Löwe with Anhalt Lion 3D Style, 105 leFH18B2, Pz.Kpfw. II Ausf. J & Love Machine 2D Style are available as a Valentines special from February 8 at 05:00 through February 15 at 05:00 UTC for varying prices.