United Kingdom, May 25 -- Tom Grennan was left covered in poo when he smashed his car into a London hotel's sewage pipes in an underground car park.

The 29-year-old singer wrecked his six-day-old Mercedes-Benz G-Class - also known as a G-Wagon - when he forced the vehicle into the parking facility when it did not fit after he needed somewhere to stop off for a comfort break en route to a ballet show date with his wife, Danniella Carraturo.

Tom - who was wearing a white suit - recalled how the G-Wagon's sun roof "ripped open" before his vision went "dark" and he felt cold all over his body. Then he realised he and his car were "covered" in human excrement and other waste.

Tom - who gets "PTSD" from recalling the stinker of an ordeal - t...