West Midlands Police hopes to save £500,000 after teaming up with 31 other forces to buy new patrol cars.
But the cost saving is a "drop in the ocean" compared to the £100 million plus cuts being faced by the police service over the next few years, according to Chief Constable Chris Sims.
As lead negotiator for the 31 forces, West Midlands Police has ordered up to 3,000 vehicles over the next two years - a mix of basic patrol cars, high performance cars for motorway policing, off road 4x4 vehicles and vans.
Of those, about 248 will be coming to the West Midlands.
According to a report to the police commissioner's strategic board, the total saved by bulk buying across the 31 forces will be between £5 million and £7 million over the next two years, of which the West Midlands saves £500,000.
Deputy Police Commissioner Yvonne Mosquito said: "West Midlands Police is leading the way by bringing together a group of over 30 police forces to buy vehicles together and achieve greater value for money for the public purse than would have been achieved alone."
The report stated that unfortunately local car maker Jaguar Land Rover was not on the Government's list of suitable 'blue light' vehicle suppliers.
It added that the local economy would benefit from the ongoing maintenance and repairs.
The Government has previously ordered police forces to make savings through purchasing.
Mr Sims, who is retiring early next year, said that, while they were making savings in this way, it would not reduce the need to make major cuts to frontline services.
He said: "Our procurement is better. This is world-class procurement for a set of vehicles. But be in no doubt that this is a drop in the ocean compared to the scale of cuts faced over the next few years."
In September, Police Commissioner David Jamieson warned the force was facing cuts of up to 55 per cent to it government funding over the next four years.