Rare cars for trading or sell

Forza Horizon Legacy Horizon FH4 Auctions
1

I have.

1.Austin Taxi
2.Ford XB Falcon
3.Hoonicorn V2
4.Cadillac Limousine
5.Aventador FE
6.Ferrari 812
7.Honda NSX
8.Lotus Elise
9.Aventador FE
10.Honda Civic 2004
11.Chevrolet Colorado
12.1984 Honda Civic
13.1979 Chevrolet Camaro
14.2019 Porsche GT3 RS

2

I want the 812

3

I would like the caddy limo. What would it cost me for that?