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Our new heyAI search is still learning, and getting smarter everyday to bring you exactly what you're looking for.

For best results, try using clear, specific phrases like this:

Make and model (VW Golf GTI)
Colour and body type (e.g. SUV, hatchback)
Fuel type (petrol, diesel, electric, hybrid)
Age of the vehicle (less than 3 years old)
Mileage (less than 10k miles)
Your budget (total/monthly)

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173 Audi A6 4-Door cars under £40000 for sale

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Newly listed

Audi A650 TFSI e Quattro Sport 4dr S Tronic

£19,781

*Representative example: Contract Length: 48 months, 47 Monthly Payments: £295.25, Customer Deposit: £2,967.00, Total Deposit: £2,967.15, Optional Final Payment: £10,056.25, Total Charge For Credit: £7,119.15, Total Amount Payable: £26,900.15, Representative APR: 13.80%, Interest Rate (Fixed): 13.82%, Excess Mileage Charge: 9.98ppm, Mileage Per Annum: 10,000

Audi A61.8 TFSI Black Edition 4dr S Tronic

£16,118

Audi A62.0 TDI Ultra Black Edition 4dr S Tronic

£14,171

Audi A640 TDI Black Edition 4dr S Tronic

£22,800

*Representative example: Contract Length: 48 months, 47 Monthly Payments: £342.48, Customer Deposit: £3,420.00, Total Deposit: £3,420.00, Optional Final Payment: £10,765.00, Total Charge For Credit: £7,481.56, Total Amount Payable: £30,281.56, Representative APR: 12.90%, Interest Rate (Fixed): 12.87%, Excess Mileage Charge: 8.00ppm, Mileage Per Annum: 10,000

Audi A640 TDI S Line 4dr S Tronic

£20,425

*Representative example: Contract Length: 48 months, 48 Monthly Payments: £458.85, Customer Deposit: £3,063.00, Total Deposit: £3,063.75, Total Charge For Credit: £4,663.55, Total Amount Payable: £25,088.55, Representative APR: 12.90%, Interest Rate (Fixed): 6.72%

Audi A640 TDI Sport 4dr S Tronic

£26,490

*Representative example: Contract Length: 48 months, 47 Monthly Payments: £367.59, Customer Deposit: £3,973.00, Total Deposit: £4,223.50, Optional Final Payment: £12,250.00, Total Charge For Credit: £7,260.23, Total Amount Payable: £33,750.23, Representative APR: 10.90%, Interest Rate (Fixed): 10.84%, Excess Mileage Charge: 8.00ppm, Mileage Per Annum: 10,000

Audi A61.8 TFSI Black Edition 4dr S Tronic

£15,770

Audi A640 TDI S Line 4dr S Tronic

£16,220

Audi A640 TDI Sport 4dr S Tronic

£17,750

Audi A640 TFSI Sport 4dr S Tronic

£21,991

*Representative example: Contract Length: 48 months, 48 Monthly Payments: £494.03, Customer Deposit: £3,298.00, Total Deposit: £3,298.65, Total Charge For Credit: £5,021.09, Total Amount Payable: £27,012.09, Representative APR: 12.90%, Interest Rate (Fixed): 12.90%