I just finished watching this episode. It was the last one from this series. The episode is made out of four parts:
1) M8 review.
2) Remembering Colin McRae.
3) Star in a reasonably fast car.
4) Fastest Emergency Service.
Let's get into it.

McGuiness opted to review the new M8 because he was sick of Harris trying all the new cars. So, he reviewed the most powerful car ever made by BMW, which is the M8 Competition. It starts at 120 000 pounds, and the one Paddy was trying costs around 165 000 pounds, BMW must have gone mad. For this price, you can buy a Ferrari, Aston Martin, Bently and the list goes on. BMW says that the M8 is a supercar but doesn't have the characteristics of a supercar which shows that maybe BMW got it all wrong this time. Paddy did have fun driving it, he wasn't driving professionally. It was as if they gave the car to me and told me to do whatever you want. There was something nice about it though, it has gesture controls. Meaning that you can increase or decrease the volume by swirling your fingers in front of the screen. And what was even more shocking, the M8 was terrible around the Top Gear track, it was the slowest they've had. Honestly, I didn't really like Paddy reviewing this car, he lacks the experience. Chris would have been way better.
Moving along, Chris prepared a brief story about Colin McRae because it was 25 years since he won the Rally Championship with Subaru. The year didn't start well for Colin as he crashed in the first event, had engine problems in the second and to top it all his teammate Carlos Sainz was winning. So, by the fourth round, everybody thought that Colin was out of the competition. But then, luck turned around. Sainz injured himself while driving his motorcycle so he missed the event in New Zealand. In this particular event, McRae obliterated everyone, he won by almost a minute. This meant he was back on track. Sainz wasn't going to be out for much, he was already back in Australia. At that time, Toyota were their main competitor, they dominated in the previous years and had all the experienced needed. While Toyota mechanics were working on their engines a race official stumbled upon a turbocharger which was illegal, but Toyota were capable of hiding it in an ingenious way. Therefore, immediately Toyota were kicked out of the competition and so laid everything to Subaru to win. Having Toyota off their backs, now Subaru wishes to win the constructors' title, all they had to do was bring the two cars home. Here is where politics came into play, Subaru ordered both drivers not to push but Colin didn't listen and pushed all the way to beat Sainz because the championship was on the line. Having failed to obey team orders, he was handed a one-minute penalty by his team. Which meant that Carlos leapfrogged him to first place in the championship. Heading into the final race in Chester, Great Britain, home race of Colin. Sainz had 75 points and McRae 70 points. To seal the championship Colin had to win this event. He did so with style too, he won by half a minute from his teammate. Writing about this story gave me joy how about while watching, I had chills. I really liked this part of the episode, some motoring history, and background.  
I skipped the whole actor interview because he was a comedian whom I have never heard of. Maybe he is only known or liked in Britain. 
Lastly, the competition everyone was waiting for. Which emergency service is the fastest? Paddy chose the Ambulance, Freddie the Fire&Rescue and Chris the Police. To test the speed and agility of these vehicles and departments. The producers prepared three challenges. The first one was an urban challenge in which the Ambulance won. My dad pointed out something, the Ambulance van is a Renault and the police van is a Mercedes. I don't know if Top Gear makes it on purpose or really England has those as vans. Because a country like England surely can make its own cars. Onto the next challenge, it was chasing the Stig. For the Police, it was fast Stig, the Ambulance, injured Stig and Fire&Rescue it was on fire Stig. Also, the Ambulance won. For the final challenge, it was a figure 8 race with each department having two cars tied together and they have to do the most laps. The Police finally won something.
They finished the season on a good note. Now, I have to wait for a year for the new series. The only thing I am wishing for is to see Chris and Freddie back in the Baja race but this time with a beast of a car.
Rating: 8.75/10