Tim Brady, 33, who was caught Jan. 27, became the fastest speeder ever convicted in Britain. He beat the previous record
-- 156 mph -- set by car dealer Jason McAllister in 2003.
Brady was caught driving the $198,000 Porsche 911 Turbo, which he took from his employer, luxury car rental firm HelpHire PLC, authorities said.
Brady had nagged his boss to take the Porsche out the day before, but was repeatedly told no, authorities said.
Judge David Morton called the act "criminally self-indulgent."
"(You were) utterly thoughtless of the danger you might be creating for the innocent," he told Brady.
Brady, who admitted to dangerous driving, was banned from driving for three years and will have to take a new driving test before taking to the road again.
He quit his job a day after he was caught.
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