If David Cameron were American, would he be a Republican?

Tim Montgomerie has a nice way with understatement. His capsule-sized overview of the campaign to come, published by National Review Online, contains this passage:

Cameron will not be to the liking of every U.S. Republican, but he’s much closer to American conservatism than the ruling Labour Party or the third party, the Liberal Democrats. The Conservative leader promises to abolish inheritance tax for all but millionaires. He will recognise marriage in the tax system. He promises to vote for tighter abortion laws. His most radical policy is a policy of school choice that will end the monopoly of provision currently misused by local government. He also plans to produce transparent in government — publishing state contracts online so that taxpayers can see how their money is being used (or should that be “misused”?). He also pledges to introduce a U.S.-style system of elected police chiefs so Britain gets the kind of zero-tolerance policing that transformed New York City.