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More head-up displays are coming to a dashboard near you

With the exception of Apple products — $1,000 for a freakin' smartphone? — one great thing about tech is you typically get more for your money with each passing year. This is particularly true with automotive tech: Features like driver assists and surround-view cameras that were once exclusively available in luxury vehicles now come standard even on some economy cars. The same thing is slowly happening with head-up displays (HUD). For example, the 10-inch HUD in the 2018 Toyota Camry is one of the largest and best HUDs I've seen in any car. And a big improvement on the much smaller HUD in the latest Toyota Prius. Mazda is another mainstream brand that offers HUDs in several of its vehicles. But instead of embedding expensive components in the dash and using a special windshield, the HUDs in the Mazda3 and Mazda6 use a thin plastic lens that folds down when not in use. MINI has a similar solution, but this low-cost approach has limits in terms of size and position of the images compared to traditional HUDs that use the windshield as a screen. We're also starting to see similar lens-based aftermarket options that can be added to any car. Last year I tested a portable HUD called Navdy that taps into a car's OBD-II port to provide info on speed and RPM and uses built-in GPS and Google Maps to show the surrounding area, display speed limits and route you to your destination. Navdy also connects to an Android or iOS smartphone via Bluetooth to display data from phone calls, texts and music playing on a connected device, and it's simple to use and easily visible in almost any lighting condition. While Navdy is still available online, late last year the company ran into financial difficulties, and product support has been halted. I recently tested a new portable HUD called Hudly that's not quite fully baked and falls short of Navdy because it doesn't tap into an OBD-II port. Since a companion smartphone app for Hudly isn't scheduled to launch until next month, for now it only mirrors what's on a smartphone. So it can be used for nav and other apps, and its features are very limited. Between automakers adding HUDs in more reasonably priced cars and the aftermarket filling in the gaps for existing vehicle owners with add-ons, the technology is becoming more prevalent and affordable. And it's also getting better.

BMW Z5 roadster gets frosty in winter testing

The successor to the BMW Z4 (remember that thing?) is currently undergoing testing in what may be the least hospitable place for a two-seat roadster – northern Sweden. Yep, even sunshine-loving convertibles need to undergo winter testing. We still aren't 100-percent certain of the name, but rumors are pointing to BMW ditching the Z4 nomenclature in favor of Z5. As we've reported before, it's very likely that this car is being developed with help from Toyota. The platform underpinning the car shown here could become the long-awaited new Supra (albeit in hardtop-only form). We'd love to tell you about the look of this new car, but between the camouflage and the caked-on snow, it's hard to draw a bead. We can clearly see the headlights are inspired by newer BMWs like the 7 Series and 2 Series, but other details are harder to discern. The right elements are here, though. The prototype has a long hood and short rear deck. It's also worth pointing out that the car shown here marks a return to a canvas convertible roof. Aside from being less complex, our spies report that the soft top is being used to lower weight and provide sharper handling. While our report on the Z4's successor from March 2015 pointed to a 2020 launch date for the new roadster, our spies say the German part of this BMW/Toyota partnership could launch in late 2017 or early 2018 with four- and six-cylinder engine options. Related Video: Featured Gallery BMW Z5: Spy Shots Image Credit: CarPix Spy Photos BMW Toyota Convertible Performance bmw z5

Top Gear drag races the BMW i8 and M4 to decide the future

The BMW M4 and i8 represent two every different expressions of the performance car. The M4 relies on its turbocharged six-cylinder combustion engine to spin the rear wheels. Conversely, the i8 packs a turbo three-cylinder and electric motors for its cutting-edge all-wheel drive system. Top Gear is the latest publication to put the pair together to find out which ethos is quicker. We saw Germany's Auto Bild hold a similar race last year, and the i8 scored a clear victory there. We don't want to spoil the winner of Top Gear's attempt, but we can tease that this sprint ends in a photo finish. Pick your favorite, and then watch the video to see which performance coupe takes the checkered flag. Related Video: