Harry Potter star Daniel Radcliffe insists he will be sensible with his hard-earned millions - and doesn't plan to splash out on frivolous purchases. The 17-year-old actor, who is set to gain access to around GBP20 million ($40 million) held in a trust fund when he turns 18 on 23 July (07), insists he'd rather invest in works of art rather than a lavish collection of expensive motors. He says, "I'm quite interested in artwork and things like that but I've never been into cars or anything. "So I don't think I'm going to splash out on a classic car collection which I think people expect me to."