April 5 (Reuters) - Shares of Tesla Inc were up about 7.5% in pre-market trading on Monday, after the world’s most valuable carmaker posted record deliveries as a solid demand for its electric cars offset the impact of a global shortage of auto parts. Tesla delivered 184,800 vehicles globally during the first quarter, above estimates of 177,822 vehicles, according to Refinitiv data. (Reporting by Subrat Patnaik in Bengaluru; Editing by Rashmi Aich)