Hi everyone I've just purchased a twingo GT and when I first got it the turbo was broke so it's been replaced with a brand new one. However I haven't had a car with a turbo before and the sounds it's making is quite scary, when I hit 60+ for a short while whilst accerating it makes a loud whooshing sound. Then stops... I can tell the turbo is working but I just want to know if this sounds normal. It's got a full warrenty. And it's running really well.. No lights on dash... Would be great if I could get some advice on this if it's normal..