Infiniti Q50 vs Audi A8
What's the difference?

Infiniti Q50

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2018 price

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Audi A8

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2023 price

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Maserati Quattroporte

Mazda 6

Mercedes-AMG E63

Mercedes-Benz A-Class

Mercedes-Benz A35

Mercedes-Benz AMG GT

Mercedes-Benz C-Class

Mercedes-Benz C43

Mercedes-Benz C63

Mercedes-Benz CLA

Mercedes-Benz CLA-Class

Mercedes-Benz CLS-Class

Mercedes-Benz E-Class

Mercedes-Benz E53

Mercedes-Benz EQS

Mercedes-Benz S-Class

Summary

2018 Infiniti Q50

2023 Audi A8

By Laura Berry

By James Cleary

Safety Rating

Engine Type

Turbo 4, 2.0L

Diesel Turbo V6, 3.0L

Fuel Type

Premium Unleaded Petrol

Diesel/Electric

Fuel Efficiency

7.3L/100km (combined)

5.9L/100km (combined)

Seating

Likes

Powerful V6 engine
Good value
Macho looks

Refinement
Quality
Value

Dislikes

Struggles to maintain traction at times
Confusing dual screens
Cabin design feels busy

Big turning circle
No folding rear seat
No front door bottle slots

2018 Infiniti Q50 Summary

The Infiniti Q50 Red Sport sedan really wants you to love it, and this latest version is doing its best to impress the heck out of you with its looks and features.

So much so that you'll take it home... and live with it, forever. And then there's that engine – armed with a formidable twin-turbo petrol V6, the Q50 Red Sport's outpowers all its rivals.

But then there's the BMW 340i which is not that much more expensive... and it's a BMW. And what about the Lexus IS 350? That's more like the Infiniti, but also more popular.

Oh, and don't forget that we when first met the Q50 Red Sport last year we didn't exactly get off on the right foot. The engine's formidable grunt seemed too much for the car to handle. Then there was the jiggly ride, and the steering wasn't great either unless you were in Sport + mode. It's all coming back now...

Perhaps the Q50 Red Sport had changed. This is the new one, and Infiniti had assured us it's a different car now.

Do we give it another chance? Of course, and we do, in a quick 48-hour test. So, has it changed? Is it better? Would we live with it forever?

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2023 Audi A8 Summary

Audi’s flagship is the A8, a long, luxurious sedan where being driven is often as important as doing the driving.

To put this ultra-premium machine in context, it competes with other German heavyweights like BMW’s 7 Series and, of course, the Mercedes-Benz S-Class as well as Porsche’s Panamera. Not to mention the Lexus LS or Maserati’s Quattroporte.

What’s life like at the top of the Audi pyramid? Stay with us to find out.

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Deep dive comparison

2018 Infiniti Q50 2023 Audi A8

Verdict

The Q50 Red Sport is a premium sedan that's great value, with a cracker of an engine. While Infiniti has improved the ride and steering, it still feels to me that the engine is too powerful for the wheels and chassis to handle. But if you're looking for something of an untamed beast, this car could be for you. Just don't say we didn't warn you.

Verdict

The Audi A8 swims in a luxury car shark tank where those paying the big dollars expect top-shelf everything. It delivers a serene driving experience whether you’re in the front or the back, in a superbly engineered and executed luxury sedan package. Not perfect, but very, very impressive.

Infiniti Q50 vs Audi A8 What's the difference?

Summary

Deep dive comparison

Verdict

Verdict

Infiniti Q50 vs Audi A8
What's the difference?