In 2007 the first model with a National Parks livery was released, the theme carried forward on other models in that year to create a small running theme. The popularity of the models was such that Mattel, Inc. decided to bring back the theme in 2018 and then continued with it for many years after. In 2019 the theme is still going strong and shows no signs of letting up. The models with this theme now form an official collection in their own right
| 2007 | MB666 : Hummer H3 | |
| MB699 : Off Road Rider | ||
| 2008 | MB526 : Hummer H2 SUV Concept |  |
| 2009 | ||
| 2010 | MB723 : Volkswagen Beetle 4×4 |  |
| 2011 | MB801 : International Workstar Brush Fire Truck |  |
| 2012 | MB686 : Tractor Plow |  |
| MB817 : Ford F-550 Super Duty |  |
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| MB817 : Ford F-550 Super Duty |  |
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| 2013 | MB837 : Superlift Ford F-350 Super Duty |  |
| 2014 | MB825 : Road Tripper |  |
| 2015 | MB864 : International Scout 4×4 |  |
| 2016 | ||
| 2017 | ||
| 2018 | MB129 : Chevrolet Blazer 4×4 |  |
| MB728 : Mercedes-Benz Unimog U300 |  |
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| MB840 : Water Hauler |  |
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| MB909 : Rapids Rescue |  |
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| MB918 : Drill Digger |  |
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| MB1003 : Freightliner Business Class M2-106 |  |
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| 2019 | MB742 : Garbage Truck |  |
| MB1048 : Hail Cat |  |
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| 2020 | MB926 : Sea Spy |  |
| MB1076 : Trailer Trawler |  |
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| MB1130 : 1947 Chevy AD 3100 |  |
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| 2021 | MB1180 : 1959 Dodge Coronet Police |  |