Chart-Track estimates that GTA IV's first day sales in the UK were 609,000 units, which beats the record 501,000 sold by GTA: San Andreas in 2004. The title also set a new Xbox 360 record with 335,000 units, beating Halo 3's 266,000.
So, just over half the copies of GTA IV were bought by Xbox owners, but the PlayStation 3 clocked up a very impressive 274,000.
The numbers are from gamesindustry.biz, which says: "These initial figures may change once Chart-Track has analysed the data in its entirety on May 6 following the UK Bank holiday."
