Image attached, this one wasn't mine but is almost identical in appearance. its a Ford Sierra Cosworth, the US market Merkur XR4Ti was based on the same platform but had a ton of major differences.
My first car at 17 was an XR, I had it for several years and then bought a nicer XR that I did a lot awesome performance work on, then I bought a german market (LHD) Sierra Cosworth that i imported and ultimately did a LOT of stuff with basically turning it into a (kind of) streetable track car.
I sold it many years ago when i moved from Dallas to Chicago and she now resides with one of my good friends in Arlington TX. We would love to buy it back and Robbie would dang near just give it back to us, but have not done so as I don't think we could even come close to getting a thumbs up at the darn air care station.
along with the ones mentioned, i've owned 12 other XR's on a short term basis and invested over 10 years of my life obsessed with euro fords, so the name stuck.