Cadillac will charge the same price for its BLS models regardless of whether buyers choose a petrol or equivalent diesel engine, or a saloon or estate model.
The offer is available across the whole, revised range of BLS saloon and Wagon models.
The saloon range has four engines, ranging from 148bhp to 251bhp, while the Wagon range has six engines, again ranging from 148bhp to 251bhp.
The BLS will now be sold with just one trim level, Elegance.
Features include parking sensors, dual-zone climate control, cruise control, leather seats and a CD stereo with 11 speakers.
Safety features include stability control, traction control, six airbags and collapsible pedals.
Prices start from 21,495.
Optional extras are limited to metallic paint, which costs 500, and an electric glass sunroof, which costs 650.