Hundreds Of Products Ready Today. Dispatch/Collection Upgrading the Seats in a TVR T350c – What Are Your Best Options?
At GSM Performance, we are frequently asked about the best bucket seat upgrades for sports cars, and recently, a customer visited our showroom with a specific query:
“I want to upgrade the seats in my TVR T350c. What choices do I have?”
The TVR T350c is a lightweight, high-performance sports car known for its raw driving experience. However, one of the biggest challenges for owners looking to upgrade their seating is the extremely narrow dimensions of the factory seats. With measurements of 50cm at the base, 50cm at the kidney support, and just 47cm at the shoulders, aftermarket seat selection is very limited. Many standard bucket seats are too wide to fit within the compact cabin, making it essential to choose narrow-fit seats that provide the necessary support without compromising space.
After carefully reviewing the available options, we found that the best seat choices for the TVR T350c fall into two categories: narrow-shell carbon racing seats from Tillett and Reverie for a lightweight, high-performance upgrade, and a more affordable option with the Sparco Sprint, which provides a slightly wider but still viable fitment. Additionally, custom-engineered brackets allow these seats to mount onto the original TVR sliders, making installation more straightforward. Below, we explore the best seat options for TVR T350c owners based on budget, fitment, and intended use.
What Seats Fit in a TVR T350c?
The TVR T350c has a tight interior, and space is limited both at the seat base and higher up at shoulder height. We’ve worked with many TVR owners and found that staying within these maximum seat width targets helps avoid contact with door cards and centre tunnel:
- Max Width at Base: 500mm
- Max Width at Kidney Supports: 500mm
- Max Width at Shoulders: 520mm
All seats recommended below stay within those limits. They’re all fixed-back bucket seats, ideal for the low-slung driving position and compact cabin of the TVR.
Sparco Sprint – Budget-Friendly Motorsport Seat Option
For TVR T350c owners looking for a cost-effective entry into FIA-approved seating, the Sparco Sprint is one of the strongest contenders on the market. It’s a fixed-back steel-frame bucket seat that bridges the gap between road and motorsport use, ideal for occasional track days or fast road driving without breaking the bank.
Why it works in the T350c:
While the Sparco Sprint is slightly wider than the factory TVR seats at the shoulders (505mm vs. 470mm), it still falls within a practical fitment range for this chassis. The base width measures just 480mm, keeping it comfortably within the 500mm limit recommended for this interior. For owners wanting FIA compliance, harness compatibility, and a well-supported driving position at a lower price point, it’s a solid choice.
It’s also one of the few FIA seats available with both velour and vinyl trim options. The velour finish is ideal for comfort on the road, while the vinyl version is great for durability and easy cleaning in exposed or dual-use builds.
Key Features of the Sparco Sprint:
- FIA 8855-1999 Approved, making it suitable for all motorsport events.
- Tubular steel frame construction, providing durability and support.
- Self-extinguishing quality velour fabric
- Compatible with 4, 5, and 6-point harnesses for enhanced driver security.
- Base and Side Mounting.
- Durable Steel Frame
- An additional hole in the base cushion for the 5th and 6th harness strap
- Compact Design
Sparco Sprint Seat Dimensions and Fitment
When upgrading seats in a TVR T350c, dimensions are critical due to the car’s limited cabin space. The Sparco Sprint is one of the few FIA-approved fixed-back seats that fits within the general dimensional thresholds for this chassis, offering a practical balance between comfort, support, and clearance.
Sparco Sprint Dimensions:
- Base Width: 480mm
- Shoulder Width: 505mm
- Overall Height: 860mm
Fitment Summary:
The Sparco Sprint fits well within the TVR T350c’s space limits. Its 480mm base clears the narrow floor area, and the 505mm shoulder width stays just under the maximum we recommend for the cockpit. While it’s wider than the original seat, it still fits without major modifications in most cases. It’s a great all-round choice for road and track use, offering solid support in a seat that fits the space.
Tillett Carbon Shell Seats – The Perfect Narrow-Fit Upgrade
Tillett seats are known for their minimalist race-focused design, ultra-lightweight construction, and compact form. For the TVR T350c, three Tillett models stand out: the B5, B6, and B8. All three share the same design philosophy but vary in depth, seating angle, and shell style to suit different builds and driving needs.
Each seat is sculpted from a single-piece moulded composite shell, available in GRP or carbon fibre layups. They’re extremely narrow through the base and shoulders, making them ideal for tight cabins like the T350c.
Key Differences Between the B5, B6, and B8
- B5: The shallowest of the three, ideal for drivers who want a lower backrest or minimal bulk. It provides a very direct feel and is best suited for cars with more upright seating positions.
- B6: Slightly deeper and more supportive than the B5, the B6 adds better hip support while retaining a very narrow base. It’s also available in both side mount and base mount configurations.
- B8: The deepest model in the trio, designed to sit the driver lower into the chassis. It offers the most support and wraparound feel but remains compact enough for the TVR cockpit.
All three seat models share the same base shell width in their standard sizes, keeping them within the strict 500 mm width limits required for the T350c. Larger versions of these seats (like XL or widened variants) are available but not recommended, as they will exceed the TVR’s internal space allowances and may contact the centre tunnel or door trim.
Key Features Across the B5, B6, and B8
- Lightweight composite construction (GRP standard, Carbon Fibre upgrade optional)
- Compact shoulder and base dimensions for small cockpits
- Optional suede anti-slip panels
- 5- and 6-point harness compatibility
- Side or base mounting (model dependent)
- Hand-trimmed edges for comfort and visual finish
For serious drivers looking to reduce weight further, each model is also available with a full carbon fibre shell. These versions retain the same dimensions but reduce weight even further, making them ideal for TVRs used in sprint events or track builds. No matter which model you choose, the B5, B6, and B8 all provide exceptional support in a compact footprint.
-
From £1,026.42 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
-
From £1,160.93 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
-
From £1,014.30 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
-
From £793.80 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
-
From £1,050.68 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
-
From £967.99 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
Tillett Carbon Shell Seats – The Perfect Narrow-Fit Upgrade
When upgrading a TVR T350c, seat fitment is critical due to the car’s compact cockpit. We’ve narrowed down the most suitable Tillett models that remain within the recommended size limits of 500mm base width, 500mm at the kidney supports, and 520mm at the shoulders. Here’s a breakdown of the key dimensions of the B5, B6, and B8 seats to help you find the best match for both your frame and your TVR’s interior.
Our Top Tillett Recommendations for the TVR T350c:
1. Tillett B6 – A compact and lightweight carbon seat with exceptional support.
- Base width: 470mm, shoulder width: 480mm – fits within TVR T350c’s dimensions.
2. Tillett B5 – One of the most space-efficient seats, perfect for confined interiors.
- Base width: 465mm, shoulder width: 490mm – a secure and precise fit.
3. Tillett B8 – A premium carbon seat with an aggressive, track-focused design.
- Base width: 475mm, shoulder width: 495mm – just under the 500mm limit.
All three seats stay comfortably within the maximum width constraints of the TVR T350c cockpit. For taller drivers or those needing more support, the B8 offers additional height and depth without compromising fitment. The B6 remains the slimmest and most compact of the three, perfect for lightweight builds and tight installs. The B5 balances minimal weight with enough hip room for mid-sized drivers, featuring a high back and fixed upright position.
Reverie Carbon Bucket Seats – Lightweight Performance for Road and Track
Reverie carbon fibre bucket seats are among the most compact and lightweight fixed-back options available today. They’re a premium choice for TVR T350c owners who want ultimate weight savings, race-grade construction, and the confidence that comes with hand-built, British-made carbon shells. Best of all, they offer tight exterior dimensions that make them ideal for low-roof, narrow-body sports cars like the T350c.
We recommend three specific models from the Reverie range that fall well within the fitment requirements for the TVR’s cockpit.
Our Top Reverie Recommendations for the TVR T350c:
1. Reverie Mulsanne C Twin Skin Bucket Seat
- Base width: 470mm, shoulder width: 490mm – a snug and lightweight fit.
2. Reverie Mulsanne B Single Skin Bucket Seat
- Base width: 460mm, shoulder width: 485mm – ideal for confined sports cars.
For those needing an FIA-approved alternative, the Reverie Super Sports FIA Carbon Seat is the only FIA-certified Reverie seat that fits the TVR T350c. However, only the Twin Skin variant is compatible, as it has a 490mm shoulder width and a 430mm base width, keeping it within the TVR’s fitting limitations.
Final Thoughts – Finding the Best Seat for Your TVR T350c
Upgrading the seats in a TVR T350c is a challenging but rewarding process. Due to the car’s extremely narrow OEM seat dimensions, careful selection is crucial. Our top recommendations are:
- Best Budget Choice: Sparco Sprint – A slightly wider but FIA-approved option.
- Best Carbon Shell Choice: Tillett B6, B5, or B8 – Perfectly suited to the TVR’s compact interior.
- Best Road and Track Option: Reverie Mulsanne C or B – Ultra-lightweight but non-FIA approved.
- Best FIA-Approved Carbon Seat: Reverie Super Sports Twin Skin – The only FIA-certified Reverie seat that fits.
If you’re unsure about which seat is best for your build, contact us or visit our showroom to view our range of Sparco, Tillett, and Reverie seats in person. Our team can provide expert guidance on fitment, compatibility, and installation solutions.