Several questions remain unanswered in the car crash involving Kuber Group director Vikas Malu and his Rs 12 crore Rolls-Royce Phantom on a highway in Haryana's Nuh on Tuesday. Mr Malu was among three occupants in the speeding Rolls-Royce that rammed an oil tanker on the Delhi-Mumbai expressway in Nuh. All three are being treated in hospital.