The Ferrari Testarossa, built from 1984 through 1991, has seen its value appreciate consistently in the last decade.

The sale included a mansion swap, bespoke furniture, elaborate chandeliers, art, alcohol and even a miniature Ferrari 250 Testa Rossa sports car.

The 2020s have been very good to the secondary automobile market. Here are the 10 high-end vehicles that have appreciated the ...