IsItAGoodCar
Reliability Guide

Common Problems with the
2000–2004 TVR Tuscan / Tamora / T350 / Sagaris

We've identified 4 known issues that can affect the 2000–2004 TVR Tuscan / Tamora / T350 / Sagaris. 3 of these are serious faults that could be expensive to repair.

4
Known Issues
3
Serious
1
Moderate
0
Minor

All Known Issues

Speed Six Finger Follower Wear

SeriousEngine

Inadequate lubrication or metallurgy in early Speed Six engines caused the finger followers to wear flat, leading to engine failure.

Est. Repair Cost: £4,000–£8,000 (Full rebuild)
Warning Signs:

Loss of power, Metallic debris in oil, Tapping noise

What to Inspect:
  • Look for invoices from specialists like Powers Performance (Red Rose/Gold Seal).
  • Perform an oil analysis if possible.
Verified by IsItAGoodCar Research Team

Diff Mount Failure

SeriousSuspension & Chassis

The rear differential mounting points on the chassis can crack under the torque of the Speed Six engine.

Est. Repair Cost: £500–£1,200
Warning Signs:

Clunking from the rear during gear shifts, Vibration at speed

What to Inspect:
  • Inspect the differential mounting brackets for hairline cracks.
Verified by IsItAGoodCar Research Team

Diff Mount Failure

SeriousSuspension & Chassis

The rear differential mounting points on the chassis can crack under the torque of the Speed Six engine.

Est. Repair Cost: £500–£1,200
Warning Signs:

Clunking from the rear during gear shifts, Vibration at speed

What to Inspect:
  • Inspect the differential mounting brackets for hairline cracks.
Verified by IsItAGoodCar Research Team

Digital Dash (LCD) Failure

ModerateElectrics & Electronics

The bespoke LCD instrument clusters are prone to fading, bleeding, or total failure due to heat and vibration.

Est. Repair Cost: £400–£800
Warning Signs:

Unreadable gauges, Flickering display, Total black-out

What to Inspect:
  • Check the display clearly when the interior is hot (after a drive).
Verified by IsItAGoodCar Research Team

Buying Tips for 2000–2004 TVR Tuscan / Tamora / T350 / Sagaris

  • Crucial: Verify if the Speed Six engine has had a "top-end rebuild" by a specialist.
  • Check the digital dashboard for missing segments or "jumping" data.
  • Inspect the cooling system; many owners upgrade to triple-pass radiators.
19992005
Check a 2000–2004 TVR Tuscan / Tamora / T350 / Sagaris by Registration