Red Bull launched their new challenger - the RB19 - in New York on Friday afternoon.In typical fashion, teams don’t tend to unveil their actual cars during these events, rather that they use them for marketing purposes or an opportunity to unveil new sponsors.Red Bull did that by announcing their engine partnership with American giant Ford.Talking to the media after the launch of the RB19, Horner admitted there will be a number of changes to the car for Bahrain on March 5.“I think the car that we’ve shown today will be somewhat different when you see it in Bahrain,” he…