[Scuderia_Turini]

4 Draw Organiser and Tool Box - perfect for storing small items like washers, screws, nails, bolts etc. 4 Pull out drawers with fold up front to keep them in place,strong carry handle. : Amazon.co.uk: DIY & Tools

Leo , this is the nearest to the requested dimensions available on Amazon UK

Utility DIY Storage Tool Box Carry Case 4 Drawers & Organiser Dividers : Amazon.co.uk: DIY & Tools

i purchased this one ages ago , works ok , but one of the clasps is not very good 
good cheep options , but nothing is as good as the original Poly Butler cases imo 
i printed an extra bottom shelf and slotted inserts to keep the tyres raised in the drawers for mine which work great (pics to follow) 
very hard to find these days , but i think versions are still available in the EU 
hope this helps Leo
just need to retire to find the time to use properly   

PowerHobby 1/32 Slot Car Pit Box Case for Scalextric Carrera Slot.it SCX Pitbox | PowerHobby

maybe a bit pricey , but looks to be well thought out , so could be great value 

Kev

Cheers Kev, I think I saw the "Tool Lab" unit earlier but I like the red and black one and it looks identical to the the Stalwart version.
Thanks for very helpful reply.

Leo

PS Edit:
Have ordered a red/black one from one of B&Qs partners for 15 pounds inc shipping :-)
Will report back with a link once I have received the unit.