In theory, Caterham Sevens are so simple you can spanner one together in a shed. However, there’s one Seven that Caterham won’t let you build yourself: the rabid 620R.

Step forward Lego, who have just announced a new 620R kit you can put together yourself. Just a very bricky, slightly smaller and much more plastic-y one.

It’s a 770-piece kit, which, rather fittingly, isn’t quite as complex as Porsche’s 2,704 pieces Lego GT3RS but will probably still generate quite a lot of swearing when you’ve realised the dog has eaten a crucial part.

And doesn’t it look cracking? See, many other cars have been brought to life through Lego but sometimes can look a bit off. Especially curvy ones. But as the Seven’s archaic slab-sided design is incredibly suited to being immortalised in tiny plastic blocks, the 620R really, er, rocks.

The details are also rather wonderful, too. There’s a replica 620R engine and gear stick, removable nose cone (handy for the inevitable shunt into the skirting board), engine cover, functioning steering wheel, opening boot (about as useful as an actual Caterham’s) and axle stands so you can tinker with it with the wheels off.

Once completed, it stands 10cm tall and 28cm long. Perfect for the mantlepiece, then.

The idea for a Lego Caterham came from a plucky and Legotastic Brit called Carl Greatrix. Being rather adept with Lego bricks, he created an unofficial yet incredibly detailed Caterham with spare bricks he had laying around the house.

It was then submitted to the Lego Ideas forum, where fans could vote for the amateur efforts they’d like to see converted into off-the-shelf, official Lego models.

After racking up 10,000 thumbs ups for his Caterham, Carl’s design was forwarded to Lego’s in-house council of power (not its real name, though it must be a pretty fun gig) who approved the Seven for manufacture. This Caterham is the end result. Go pat yourself on the back, Carl.

So if you’ve always fancied building a Caterham, but have feared that it could lead to your loved one walking out on you, this could be a good step to test the waters. Plus, it only costs £69. Which is a damn sight cheaper than the £49,995 you’ll need for the proper one.