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Trade Classics

1971 Lotus Seven S4

Sold for

£12,500

Ended 3 Dec 2025

Data from Trade Classics, updated on 17 Oct 2026

Year
1971
Mileage
65,391 miles
Gearbox
Manual
Engine
1700 (1599 on V5)
Colour
Blue

Specification

Interior
Black
Steering
RHD

Description

An interesting chapter in the Lotus Seven history, the S4 offers comfort and space while maintaining the core philosophy. The Lotus was originally finished in blue; however, it was a slightly darker shade, and Mark opted for this lighter shade which suits the Seven to a tee. The condition of the paint looks excellent as pictured. The images are taken from a few different angles to show off the car as you would see it if you were standing there yourselves. So please take the time to fully assess these high-resolution images and videos of the car to make up your own mind about the condition of the paint. The fibreglass body appears to be in excellent condition, with no signs of cracking or crazing. Looking at the underside, the floor and the chassis are also in excellent condition. We've highlighted in more detail our observations through our high-resolution images and videos, so please take the time to look through all the media files for a detailed view of what’s on offer and to assess the condition of the car for yourselves. A simple dashboard is part of the body and is painted black. The fascia holds the relevant instruments, which all work correctly, and the odometer is showing ~65,391 miles at the time of our visit. Please see the interior gallery for more high-resolution images. What's not to love about the Lotus Seven S4? It’s an open-top, two-seater, lightweight, rear-wheel drive, British sports car. It ticks all the boxes, offering a thrilling driving experience that is felt from the moment you turn the key. The windscreen is original and in good condition. Mark has added side wind deflectors, which can be easily removed if required. There is a roof that is in great condition, but the clips still need to be fitted to enable it to fit properly. The original 5.5J wheels have been finished in silver with chrome centre caps; there are some minor signs of pitting which have been painted over, but this isn’t excessive. A matching set of period-looking Dunlop tyres are fitted, which are in great condition, having only covered ~1,000 miles. Please see the image gallery to take a closer look at the wheels. The seats are in excellent condition, and Mark managed to find the same material used on the originals, which has been used in the seat centres. There are a set of rubber mats fitted to protect the fibreglass floor from unwanted scratches. Please see the interior gallery for more detailed images. The engine has been fully rebuilt and upgraded to a 1.7-litre. This runs on Weber twin 40s, which greatly adds to the performance and sounds fantastic. Some of the engine's features are; a 243 fast road camshaft, new pistons, steel rocker posts, a high-pressure oil pump, an upgraded cooling system with an expansion tank, Duplex timing gear, and a bespoke stainless steel exhaust manufactured to the original spec. There is also an oil cooler fitted, which has yet to be plumbed in, although two hoses are included. The four-speed gearbox has a precise change and is coupled to a limited-slip differential. Watch the video to see and hear the car in action. All of the switchgear has also been replaced, along with a full rewire. The rewire has also been upgraded to a full fuse board that Mark has cleverly hidden under the dashboard. Although some of the invoices gathered over the years are missing, there is still a significant amount for various parts purchased, including the full engine rebuild. Also included is the original registration booklet, which shows five keepers, the V5C shows no previous keepers. The S4 was the last Seven produced by Lotus before the rights were acquired by Caterham Cars, approximately ~664 Lotus Seven S4s were made, making this fully restored 70s sports car a very desirable two-seater to own. We've done all our usual seller checks, including photo ID, V5, and also actioned an HPI check on the vehicle. We've summarised our view on the car based on information gained from the seller in the listing above. However, as you can see, we go to great lengths to photograph and video the car in high-resolution detail. This has been done for you to make your own assessment from the comfort of your sofa. So please sit back, have a cuppa, and take your time to review everything in this listing to make your own assessment of the vehicle's condition. Viewings are also welcomed with all our listings, so please get in touch with us to arrange a suitable time—we just need to speak to you first and receive a valid photo ID before confirming. If there's anything you're unsure about, no matter how small, then please ask the owner in the comments area below before placing your bids, as bids can't be retracted and form a binding contract if you win the car—just like in a traditional auction house. Giving the Lotus its fantastic handling is a set of Spax adjustable shock absorbers. The ride is firm without being harsh, and there are no knocks or bangs coming from either corner of the car. Stopping the car is easily done thanks to the excellent braking system and the lightweight nature of the Lotus. The original steering wheel is in good condition with no signs of excessive wear, and the gear knob is a simple ball. Please see the interior gallery for more detailed images.

Comparable sales

Sold prices from every recorded auction. Prices in GBP.

Median sold price

£16,387.50

Sold range

£9,500 – £26,500

Sold lots

6

Price trend

Not enough sales yet

Sold 24% below the median for this model

Too few other sales in the last 12 months to chart.

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