Jaguar is hoping to boost sales in its vital US market after it achieved a quadruple success in a quality guide dubbed the motor industry bible.
The Midland carmaker has brought some relief to the region's beleaguered car industry by becoming the top ranking European carmaker and second overall in the J.D. Power Initial Quality Study.
It also achieved a Gold Plant Quality Award for its Halewood factory in Merseyside while there was a massive improvement for the Jaguar X-type.
In the Midlands it makes the S-type car at Castle Bromwich and the XJ and XK models Browns Lane in Coventry, which will halt car production this year.
The J.D. Power Study ranks new vehicle quality after 90 days in the hands of customers.
The improvement by Jaguar, which rose from third to second behind only Japanese luxury brand Lexus, was spearheaded by the X-type saloon.
The model improved 37 points in the study, a 35 per cent leap over last year's results, while the Halewood plant which makes it picked up J D Power's Gold Award for European plant performance.
The factory - once Ford Motor Company's lowest rated plant in the world - was recognised as a centre of excellence for lean manufacturing, a discipline that focuses on elimination of waste, while driving high quality, continuous improvement.
Managing director Bibiana Boerio said: "Improving our quality has been a passion for everyone at Jaguar and we are once again delighted with these outstanding results."
The weak dollar and large discounts offered by Jaguar's rivals have taken their toll in recent months, but Ms Boerio said the success could help push sales back up in America, where the guide is hugely influential among consumers.
She said: "I am absolutely delighted by the JD Power result. I like to think that this is the voice of real customers telling us how much they enjoy their Jaguar vehicles."