These three all came from here, before the Gaydon Slot Car Festival.
I haven't done anything to the BMW or Nissan other than clean them and widen the rear track on the latter.
I figured the Lancia, being a pre-owned white kit would be the one requiring some TLC - and it was.
It was very nicely painted and decalled but the front spoiler, grill and headlight assembly was quite loosely attached, so was gently prised off, all the edges cleaned up then firmly reattached with Tamiya thin styrene cement.
The same was true at the rear with the gravel pan, tail-light panel and engine detail all barely attached. I could see why, as the parts made a very deeply tunneled rear end, making it difficult to glue and assemble.
Clear tape was used on the outside to hold the pieces in place while they were 'spot-welded' from the inside. I used the capilliary action of the thin styrene cement to tack short sections between the tape together, being careful not to overdo it and have the cement run under the tape on the exterior of the bodywork.
When it was set, the tape was removed and the pieces finally 'seam-welded' from the inside with more of the thin styrene cement, which flowed nicely along the joints.
The interior was removed and the glass and rear window louvres were given the same VERY careful capilliary cement treatment before the interior was stuck back in place with the GS cement. Finally the rear spoiler, which was completely detached was stuck back in place with the GS Hypo Cement too.
The chassis needed no work other than to ease off the gear mesh a tad and push the wheels out as far as they'd go without catching the bodywork.
Of the three, I like the Lancia best, partly because it did need some work, which I enjoyed and makes it feel more like 'mine'. It may get some more graphics though, just to aid visibility on the track.