Formula 1 championship leader Kimi Antonelli was left feeling ‘emotionally empty’ after his late retirement at the Barcelona Grand Prix, which sparked reliability concerns at Mercedes.<br>The 19-year-old was running second behind Lewis Hamilton before suffering an engine failure that caused Antonelli to retire with three laps remaining on Sunday.<br>Read Also:<br><br><br>Formula 1Five quick ...<a class='more' href='https://www.motorsport.com/f1/news/kimi-antonellis-barcelona-gp-retirement-prompts-reliability-concerns-at-mercedes/10830346/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-F1&utm_term=News&utm_content=www'>Keep reading</a>