Apple co-founder Steve Wozniak has said he "still loves" his Prius car, despite what he suspects is a Toyota software problem behind sudden spikes in acceleration. "It is just like all other gadgets we have...Everything today has a computer in it, so everything will fail," Mr Wozniak said, during on-stage banter as part of a geek talk show at a computer security conference on Friday. He said he had bought nine Prius hybrid cars, and had driven one from the Silicon Valley city of San Jose to San Francisco that day. He had conducted his own tests of Prius acceleration, taking his car to an open stretch of highway at dusk and then notching up the speed, using the cruise control mechanism. At "some number over 72 miles per hour the car accelerated and kept picking up speed," he said. "I wanted to see how high it would go." Mr Wozniak add: "It wound up being unlimited so I hit the brake. The problem had to be in the software.