There are quite a lot of these on the season overviews, which is annoying. I'm not here to complain, I'm here to ask if there's some way I/we can help out, in order to fill these blanks?
Here's an idea: Write up a review in the style of the other reviews for those episodes missing one and post them here. Some admin may appreciate the time-saving and copy them over.
Didn't realize it was that easy, here are the missing ones for Top Gear series 18...
18-01
The presenters travel to Italy to find what super car is better than the Ferrari 458 - Jeremy in a Lamborghini Aventador, James in a McLaren MP4-12C, and Richard in a Noble M600
SIARPC: will.i.am
18-02
Richard goes to Texas Motor Speedway to explore the world of NASCAR racing by driving a pace car, working in the pits, and driving a stock car with Kyle Petty
Jeremy reviews the Mercedes-Benz SLS AMG Roadster, and the Stig takes it around the test track
Jeremy and James go to China to examine the Chinese automotive industry
SIARPC: Matt LeBlanc
18-03
James tests the Vauxhall Corsa VXR and Fiat Panda, and the Stig takes the Corsa VXR around the test track
Jeremy and Richard film a climactic car chase for the film adaptation of The Sweeney
SIARPC: Ryan Reynolds
18-04
James goes to Florida to test the Fisker Karma and drag races it against Brian Johnson in his 1928 Bentley
Jeremy goes to Sweden to test the Ferrari FF on an ice replica of Silverstone and compares it to the new Bentley Continental GT V8
The presenters each create a cheap mobility scooter and then race them against three wounded soldiers with real scooters
SIARPC: Michael Fassbender
18-06
The presenters race around Donington in track-day cars - Jeremy in a KTM X-Bow, James in a Caterham R500, and Richard in a Morgan Three Wheeler
Jeremy recreates the Battle of Britain using a classic 1920s Bentley and the German-made Brutus, each with airplane engines
The presenters drive their track day cars to work in cold and rainy weather
SIARPC: Alex James
Bond Cars
Richard examines 50 years of cars in James Bond Films, and recreates some of the technologies used in the films