A bit deceiving low number. The XK150 was at the end of its production cycle (1960) of 13 years if you were to count all the evolutions from the XK120 on, so interest was dropping already, especially with the E-Type to hit the showrooms anytime soon. It's a bit like having any other car at the end of its production cycle: they're probably less well sold than in their debut years. The 3.8 engine (though it was just a bored up 3.4, really) from the MK IX was brand new that year for the XK150 and MK II though, so in that sense it was an important time for Jaguar because of the start of the mass production of that engine (also for the E-Type), but also the end of an era, saying goodbye to the XK1x0 series. So that only 89 were this particular configuration of almost 10,000 XK150's produced isn't a terribly big surprise
The 512 TR started in 1992. The Testarossa was produced from 1984 to 1991. I took a pic of the VIN of that Ferrari, the 10th digit of the VIN is the letter M that means it's a 1991.
No way I could imagine to see this type of car in my area, so this was a good surprise for me. A 1961 Ferrari 400 Superamerica Aerodinamico SWB Coupé
Looks like a gold brown metallic 1968 Hemi Roadrunner at the right of the Ferrari in the first three pics