While I love great equipment, I'm not attached to "things". Every car I've sold was "not that great" and "easily replaced". The new stuff truly is better.
As far as great vehicles I've owned, one stands out as being supremely fun. [not the fastest or the best, just the most fun]
Yamaha IT490 motorcycle with ported cyl and tuned expansion chamber. 232 pounds, 63 RWHP.
It did everything well, had arm straightening torque (something today's bikes can finally match 35 years later) had good long travel suspension and a wide ratio 5 speed trans. And it was light. Something today's fast bikes are not.
Rode it on the trail and I-95. It did everything. Including pulling the front wheel up at 60 just by rolling the throttle on.