A motoring pressure group has warned that the government's proposal to fit all vehicles with a 'black box' and create a 'pay per mile' transport tax could mean disaster for many SMEs.Motorist's Voice launched its new website with a campaign trying to get the government to abandon the policy, which may be implemented throughout the UK by 2015. The pressure group said the proposed policy, which would see road users paying up to £1.30 per mile driven, could potentially seriously harm British businesses. "Not only will these dramatic taxation charges result in high levels of unemployment from those unable to commute to work, but they will also see many businesses forced to close," announced the website.According to the group, SMEs would be particularly affected, as they would "not be able to absorb the increased outgoings, and will not be able to pass these onto their customers".Talking about the proposals, Conservative MP Owen Paterson told the Guardian that the scale of the project could make it extremely hard to implement."The scheme is a complete non-starter. We do not get off first base until we have a secure database. We should not underestimate the scale of the task and the difficulty of keeping track of 42 million drivers and 33 million vehicles," he told the paper.© Adfero Ltd