Drivers hours

My boss seems to think the 4.5 hours is for driving only and he told me last night i can do
Drive 1 hour
Work 50 mins
Drive 1 hour
Work 45 mins
Drive 1 hour
Work 1 hour
Drive 1 hour 30 min

Before i can take a break and told me honestly you wont break the rules like that.

Im under the impression he not clued up on regs can someone clarify?

I thought if i do 2 hours total driving and 4 hours other work i must take atleast a 15 min break is this correct?.

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