Expert answer

Hi Justin,

I'm sure you don't need me to tell you that the lower mileage car you can find, the better. All three models mentioned are suitable for the job, though there's a reason so many taxis are the Toyota Avensis. It's the one we'd veer towards. The BMW would be a nicer car than either the Passat or the Toyota, but once you start racking up high mileage its maintenance could get expensive.

Hope that helps.

Expert answer

Hi Roger,

We put this one to Volkswagen Ireland. It was confirmed that Park Distance Control is available for the 2005 Passat saloon (B6), with part number "3C0 054 630". It includes a control unit, four sensors, a sound generator and connecting wires. Best bet is to contact your local Volkswagen dealer for a price. We believe the sensors can even be painted to match the colour of your car.

Hope that helps

Expert answer

Hi Michael,

It sounds like this choice is down to personal opinion. The Passat has a better reputation for reliability, though the Insignia is not too shabby on that front. The creaking interiors affected early cars and you should be able to quickly check for it on a test drive.

We agree that the Insignia is a better looking car, though the Passat Highline has a great specification. Countering all that the Insignia's 2.0-litre engine is more powerful, if louder and less refined.

In summary, we'd probably go for the Passat, but regret it every time we see a good Insignia!

Best of luck - let us know how you get on.

Expert answer

Hi Ann,

Our writer Kyle Fortune drove the new ML 250 CDI so I've passed the question to him for answering. This is what he said:

"The base 250 CDI engine in the ML is actually a 2.1-litre turbodiesel mated to a seven-speed automatic to best make use of the engine's torque and power spread. It works relatively well too, so long as you remember you're shifting quite a lot of bulk without masses of power. That said it's got a sizeable 500Nm of torque generated low in the rev range, so the ML 250 CDI is rapid enough in town traffic. It's only out of town - on a motorway slip road when you push it - that you'll perhaps be a bit underwhelmed by the performance. It's all about expectations though, and really, it's a credible performer.

As to the BMW? It's difficult to comment on a car that doesn't exist, but experience of BMW's small capacity turbodiesels does suggest that they typically over deliver on expectations - the 520d for example feels very rapid given its size and weight. How that will translate to the bigger, weightier X5 is questionable, though BMW is unlikely to release a product that's not at the top of its game. We've not heard anything about a 2.5d X5 (officially or not), but it's quite possible given the prevailing economic climate and the ever tightening quest for economy. Downsizing is common so it stands to reason that BMW might be considering it for the X5."

Feel free to come back to us if you would like to know more.

Expert answer

Hi Mick,

The 1.6-litre TDI engine has 105hp, which doesn't sound like much, but it's the engine's torque that matters more in the real world, and this Passat has 250Nm from just 1,500rpm. It's more than enough for the Passat in most circumstances and as all the performance is low down in the rev range you don't really change down to overtake.

Saying all that, if you plan on towing or you drive with a full car regularly you'll appreciate the extra power of the 2.0 TDI engines, but most people will find the 1.6 perfectly acceptable.

Hope that helps.

Expert answer

Hi Sherif,

The newer 1.4-litre TSI engine is superior in every way. It produces a little more power, but way more torque across the rev range, making it faster and actually more efficient too so it emits less and uses less fuel.

Hope that helps.

Expert answer

Hi James,

We put this to Cartell.ie, the vehicle records experts. Here's the response:

"Officially, there is no particular line on this question. Anecdotal evidence suggests a vehicle may still pass a subsequent NCT even with a lower odometer reading. The National Car Testing Service is not releasing its mileage data to anyone. Cartell has actively sought mileage records from the NCTS for some time now and continue to do so on the grounds of public safety."

Hope that helps

Expert answer

Hi Richard,

Lots of potential reasons for this. Very first thing I'd look at is tyre pressures. Are they all even and to spec? Are there any other issues with the tyres you can see? Uneven wearing, etc. If no problems with pressures I'd suggest getting the alignment checked. If it gets knocked out (relatively easy to do with a pothole or kerb) then there could be more friction causing heavier fuel consumption.

Come back to us when you've checked that.

Expert answer

Hi Diarmuid,

The 2012 Volkswagen Passat 1.6 TDI Highline retails at €30,880 on-the-road at the time of writing. You'll be offered different deals depending on the mileage and condition of your own car, but assuming it's a standard Highline version with average mileage and good condition we'd estimate the cost to change at about €10,000.

Let us know how you get on.

Expert answer

Hi Brendan,

I spoke to Volkswagen about this and its retailers will do this job in about an hour for a total price of €350. That includes VAT, parts and labour and they'll even wash and vacuum the car when it's in.

If you decide to go this route please do let us know how you find the service.