HI gents
Michael, yes, the production quality has increased noticeably over the years, which sure makes it easier to build a kit and have it look pretty good! I'm not sure what Mclaren you're building - are you posting it?
Hi Damian, I took some time staring at photos, and then the kit - trying to figure out how to give it some flair without getting stupid in the surgery/modification department...hmmm, would this guy do that?...yes - but not this time!
HI Gabriel, your point is spot on - the Tamiya kits of today are sure a pleasure to build no matter your plans - be it full on detail or straight out of the box - either can be built up to look really nice. I don't think you'll have any problems with this, and I'm guessing the Ferrari you recently finished was more of a headache than this will be. This kit (my version) just suffers from some sloppy connecting points, which try your patience, and then some clunky casting. The latter parts won't be seen, they're just tedious to build.
So, here at the home office - I started a new work project this week, but the first couple weeks of tasks will be tackled by my team mates, so, this guy can still do more productive things, like doing the right thing by cleaning up my workspace, so that when my task rolls around, I'll be ready for it...nah - I'll stick with model building.
Please see below. After some head scratching, I figured out some adds to the front end that give it some, you know, panache. With the front cowl on, it looks pretty normal - but, you can see - I "needed" to make are genuine sway bar...not as easy as I would have hoped:

It turns out, this visually predominant piece is a continuous bar (relatively thick), that needs bot ends to be curved. In real life, holes are drilled in the ends, with bolts inserted, that connect to a substructure that connects to the two lower control arms. How hard could that be to make?
Well - not easy. First, the chunky metal rod I used is hard! and it needs to be bent into shape, only when in place, as it needs to be inserted through opposing holes in the monocoque, with the front suspension set in place. This guy could have done the right thing and use the kit parts (though they are a bit wimpy), and not bother, nah, I made it unnecessarily complicated.
I inserted and bent the rod, around the plastic suspension parts keeping them in tact despite several attempts to destroy them with comparatively giant needle nose pliers, along the way. I then used some small, but of course not small enough brass eye bolts to attach the sway bar to the suspension.
The eyebolts are small, but not 1/20 scale small. Task 1, cut about 3/8" off of the "bolt" side, leaving about a 3/16" "tail". Then file the "tail" from just under 1/16" diameter to something much smaller to fit into the plastic control rod. Next, file the "eye" part- a lot, to make it look 1/20 scale. Then, cut an opening into the "eye" so the "eye" looks more like a C than an O. Then, install the modified part in the plastic control arm, insert the metal rod, and simply (haha) crimp the "open eye" over the metal rod - a real treat of a a self imposed tedium - oh, and of course, add aluminum tube retainers on the inside. That was a lot of work for questionable results!
On to some more worthwhile endeavors:

It turns out under the cowl, there are a variety of cool things to do - added aluminum gussets with lightening holes, lead foil floor pan, gas, brake, and clutch lines, and that little "Y" on the steering column. There's a U-joint there, and you really couldn't see it - so, more aluminum rod, cut very small, then cut in half, and backed with some evergreen.
Next:

Those metal rods on brackets on the steering column. I have no idea what they are, but the real car has them and they look neat, and:

Some other odds and ends - the hoses, run to front radiators - which I don't really get, as there are also side mounted radiators in the back - but they exist. You'll see some aluminum shields on either side of the seat - I didn't see these in pics, but this guy knows radiator hoses get - HOT! The little wing nut - from my favorite T-55 detail set, and other bits and wire, controls the fire suppression system; I will paint the wingnut red. I don't know what the switches connected to the box are for on the left, but they are there, so, I added them too.
And, that's where is sits today. The kit has some neat PE for the rear wing, so that will likely be next. This will be interesting, in that of course, the kit will have you keep the two part, plastic wing, and somehow magically attach it to some complicated PE framework...seems like a good task for this guy.
OK gents, stay well
Nick