In early December 2013 Google announced that their Knowledge Graph would include new car price and information on specifications. Back then this new information was only available in Google US.
I am unsure about the specific date that it has been rolled out, but the car information is now visible in Google Australia (among other local Google versions) too. However, compared to Google US only a title (year, brand and model), the industry category the model sits in and images are being showed. Price and specifications are not yet shown in the Knowledge Graph results. For example, this is how the results for [Toyota Yaris] looks like:
Although there is a big arrow visible which suggests that more available can be made visible by clicking on it, so far nothing happens. It is unknown to me if and when Google will make more information available. This will certain cause a challenge as car prices in Australia can differ based on postcode. Visit an Australian website of a car manufacturer and you will be ask to provide your postcode so they can give you tailored prices. It will be interesting to see if in the future Google will be able to provide you with specific retail price based on your personal information or that Google will show you ‘starting from’ prices.
Different car searches can bring up different ways in which the Knowledge Graph is build up. In Google Nederland, searching for [BMW 3] shows you this result:
Still no price and car specifications visible but you get more images results. Clicking on one of the images takes you to that specific image with the Google Images carousel.
That the Knowledge Graph outside Google US is still in development is apparent from the fact that the Knowledge Graph only seems to return car models that are available in the US market. Search for [Holden Commodore] or [Renault Clio] and you will get no Knowledge Graph results. Searches for [Toyota Kluger] will give you its American equivalent the Toyota Highlander. In this stage of development the Knowledge Graph is not than a visual presentation of the car model you are after and gives automotive websites only new opportunities to have their images more prominent in organic search results. An XML image sitemap and Schema.org for images can help you to get your images exposed in the Knowledge Graph.
It is interesting to see how the Knowledge Graph will be further developed inside and outside Google US and from where Google will continue to pull the information to compile this car model Knowledge Graph and which opportunities this brings for automotive websites in terms of optimisation.