The following excerpt is from an article in MAX POWER Magazine / July 2000 Issue / Page 52:
"...Lexus may end up creating a model aimed at knocking the M3 off its perch. Depending on who you ask, an IS 400 may or may not be possible.
The IS 300 chief engineer thought long and hard when asked the ponderous question of whether or not Lexus will ever offer a 400-series of the IS. He leaned back in his chair and smiled, as if he knew something we didn't and was not about to reveal such a secret [Or maybe he got his kicks from leading us on with his long pauses.--MAX], while his eyes darted across the room several times. After a moment he looked back and said, "Solly, it won't fit," [Did we mention the chief engineer's name is Nobuaki Katayama?--MAX], but a smile was definitely present on his face."