English to Russian Art/Literary General / Conversation / Greetings / Letters Escape from police

This is from a movie.
Two criminals holding on to their stolen item sit in the back of a limousine. Suddenly they notice that two unmarked police cars put on their grill flashers and their siren behind them. They want to escape and this is what they say to their driver "Lose them now!"
How would you say it in Russian in the given situation?