15 Jul 2018, 08:02 UTC · By: Daniel Patrascu / PEMS is an externally mounted piece of equipment used by carmakers to test the emissions of their cars in real world driving conditions.
16 May 2017, 14:53 UTC · By: Vlad Mitrache / There is a big discrepancy between the numbers shown by the official emissions tests and what happens in the real world, and it's calculated in human lives