Cant really compare a “cheap quality” Caldina with a “Lexus” can you? Depends what you want it for. Both can be made to go very quickly. Aristo (JZS161) will indeed do 270-280kph in mild tune. Change intercooler, fuel pump, ECU and add boost controller for 280-290rwkws.
Expensive to modify but well worth it just to beat expensive “fast” Euro’s and smaller 4 cyl cars that think they are fast
Caldina isn’t my area of expertise but some on here run 12’s with furl system and turbo upgrades (stock internals im assuming)??