I do collect some material about soviet radar in ww2 and will present it in a few weeks. But some can be said first:
The VVS had Radar.
It´s first generation of radar doesn´t come from the western allies but from Germany in 1940 (basis for Rus-1 stationary ground radar). The soviets developed this to Rus-2 (prototype only) and later Rus-3 in late 1941. They got more advanced radar technology in 1942 by Britain.
The Meteor could barely rip the Il-2 (with ease) except if they reduce their speed to get close kills. This plane (could face the more armored Il-10) is highly advanced and a superior fighter but approximation is quite high and you can only fire fewer rounds on the Il-2/-10 or you choose to reduce the speed (leaving the Meteor a very easy prey for escort fighters and rear gunners: slow, BIG TARGET, clumsy, worse acceleration). The Typhoon/Tempest is the best RAF plane for this task: Good armed, with high acceleration and durable enough.
The I-250 of Mikoyan (first flown in march 1945) tops the Meteor III in almost every aspect, except for service sailing, durability and the equal armement: Top speed from low level to high altitude, Acceleration, turn rate, roll rate and climb. Just a note to be careful for generalizations.
The Hurricane and Typhoons are formidable fighters, but none of them could rip a Pz.IV onwards, resp. T-34, KV-1/-2, JS-1/-2, or the SU-artillerys. The ap-capabilities of the 20mm makes this highly unprobable. Bomb and rocket hits could do this but you need a (unprobable) direct hit to do so. The hit percentage at tactical sorties of the 2nd tactical RAF airforce during 1944 and 1945 was below 30% (a hit was considered if the bomb strikes somewhere in 1000 ft. distance to the target!). The Typhoon could not take out any Whermacht vehicle, regardles of qhat you think you have read. This question is discussed in other threads in detail. And there are lots of soviet tanks, without proper counter weapons, there is a big problem for the British ground forces.They are good for unarmored and light armored vehicles, where they can wreac havoc with ease, and this can be as important as knocking the tanks out. The IL-2 on the other hand can knock out any British ground target.
The Il-2 losses are very high, no doubt. But what I know from the reports is that no other single allied plane destroyed that much percentage of fighting Whermacht forces, and that´s the reason why it was produced in numbers. In this way Plan_D is right. The RAF on their theatres had no urgent need for such a plane, while the red army depends on it. It´s a question what kind of enemy you face in what quantities.