New Delhi: A 22-year-old man was killed after his car, allegedly moving at a speed of around 200 kmph inside the Dwarka Expressway airport tunnel, rammed into a wall, with the impact ripping the vehicle's engine off and triggering a fire, police said on Thursday.The victim, Abhinav Singh, a native of Bihar's Muzaffarpur, was travelling from Ludhiana to Gurugram, where he lived in Sector 42, when the accident occurred near the Shiv.