exeterjeep

Looking at SJ's website....
Does this look like yours. I seem to recall there being a silver part/insert, maybe this is not available any more?
B076U6005MTR - WAIST LINE TRIM (Per metre)

To go with this part, Steve suggests
SJ075B0007 £8.95
Hints and Tips: Very early models use a flat type trim. Instructions for waistline fitting. Remove the old trim. This should be simply a matter of pulling. Be a little careful, sometimes it is possible some repaired sections might come away with the trim. Paint can also come off, if it was done poorly last time. Clean off the remains of any old adhesive. In the case of the door sections, make sure the carrier strips are secure and in one piece. These are often held to the doors with small self tapping screws which can go rusty creating a lump in the trim. You should consider replacing these with the currently recommended countersunk pop-rivets, SJ075W0011. Sand the vertical face of the body lip with course sand paper. The new trim is made soft and workable with a heat-gun. It will melt or burn, if you get it too hot. Put a section on the car and then gently shape and push on to the lip. Secure with lots of strips of masking tape. Do not pull these too tight, they can cause dents in the finished trim. You need to use a lot of the strips of tape. Do not stretch the trim as you apply it. Over the years that it will last, it will shrink, it will also shrink a little as it cools, so do not stretch it now. On the Esprit S1 & 2 the front wing section needs to be trimmed in thickness so it sits flatter against the body as it goes under the front bumper. Do not attempt to join any section of trim, it will not work! When you have the complete car covered, and the ends trimmed, slightly too long, leave the car overnight to cool. Gently take the trim off and you will find it will stay in the correct shape. With a small piece of left-over trim, gauge how much of the Polyurethane adhesive SJ075B0007 to put into the groove of the trim. This will vary as the size and depth of the lip does change. You need enough to touch the flat face of the body which you sanded earlier but not so much as it comes out. Apply adhesive in the groove of each section of trim and attach to the car. Check as you go, that the glue is making contact to the flat face of the body as planned. Hold each piece in place on the car with lots of tape as before. When you are happy, leave over-night to set. Remove all the tape and trim the ends at the required angle. Theses are around 30 degrees, except for the front of the doors, which need around 60 degrees. Fill the open holes in the ends with more adhesive and smooth off.
SJ075B0007 - WAIST LINE TRIM ADHESIVE

Possibly the brake pedal switch, seems a common issue on V6 cars, cheap and simple(ish) to change. Did mine last year after occasional fault became worse. Found some instructions, had to slightly mod the replacement part to fit - needed a bit of a file. Already bought another one for the next time.
https://www.thelotusforums.com/forums/topic/120016-abs-and-traction-control-warning-lights-on/#comment-1015880
 

From the manual - may help?
Seat Base Removal:
1. Place your hand around the outer section of the LH/RH outer squab sections to determine if retaining clips
have been fitted to secure the seat base frame to the lower section of the quarter panels, if fitted gently pull
the frame upwards to release the frame from the clips.
2. Release the rear seat base cushion from the fuel tank bay panel by pulling it free from its 4 Velcro fastening
sections.
3. The seat base may now be withdrawn from the cabin.
Refitment:
Is the reverse procedure of removal.
Ensure sure the seat belt buckles are refitted correctly between the backrest and seat base assembly (i.e., not
kinked, twisted or trapped between the backrest, seat base or bulkhead panel).

I see you have an early Excel from other posts,
sounds similar to one of my previous early cars had the same sort of thing, the pipe at the front was only a few inches long and had a bolt in the end of it, so went no further. I just assumed that Lotus had not revised the intake area design/casting from what  used for the elite/eclat with the vacuum pods. Can't actually recall if this was my elite s2.2 (they had electric lights) or my 84 excel. I know that the elite s2 was said to have a development engine.

From parts manual - should give an idea where?
looks like #35

From the excel manual. may be of use?

 

According to B&C parts web site, A132M6168F is the part number and is used on 400/4xx models - and it seems to be cheaper than the MG Rover one fitted to earlier cars. B&C price says £21.01 + Vat+PP 
 
Evora 400 17_11 Exterior Lamps, Except Headlamps 04 Evora 410 Sport, GT410 & GT430 17_11 Exterior Lamps, Except Headlamps 04
 

My Evora manual says.....in passive immobilisation....

 

Articles like this    
https://www.kwik-fit.com/blog/drivers-risk-mot-failure-if-tyre-pressure-monitoring-systems-go-unserviced
When this was announced, if the car displayed a TPMS fault warning light on the dashboard, this would be marked as a minor defect. Defects that fell under this category would be considered to have no significant effect on the safety of the car or impact on the environment. They would be suggested to be repaired as soon as possible, but would not lead to an MOT failure.
Then, in June 2019, following the release of the government’s MOT inspection manual, TPMS malfunction changed from defect category to major. A major defect category is considered to affect the vehicle’s safety, put other road users at risk, or have an impact on the environment. This meant that the Tyre Pressure Monitoring System legislation had come full circle, and it once again can result in an MOT failure.