After many exhaustive attempts to get any satisfaction from anybody from Lexus, including Lexus Financial, I returned my leased (without buying) my Lexus LS460, with only 28K miles.
Yes, unintended acceleration is real. The problem is that it is intermittent and cannot be duplicated on command. Therefore it cannot be fixed without doing a complete replacement of all interconnected hardware in the loop. Lexus has stonewalled every attempt I have made to correct this malfunction.
Do not purchase a Lexus LS460 with vin JTHCL5EF605019464.
Time will prove me right!!!!!