GT5 Prologue additions confirmed for Europe, but no fixed date

VG247:

"It's still just down as 'March' with no definite date, according to SCEE, but the European version of GT5 Prologue will include six tracks, 71 cars, split-screen, Drift Mode, access to "Gran Turismo TV" and tuning."

Note, this is the European version of the game, not the US version previously detailed today.