Expert answer

Hi Kieran,

That's frustrating on the resale value of your car, but we're in no better position than the dealers you've spoken to and they hold the 'power' in that regard so the cost-to-change will all come down to the deal any one showroom is willing to make. Anecdotally, you'll get a better deal if you go back to a BMW outlet, but it doesn't sound like any BMW is on your radar this time around. 

The three cars you've listed are decent enough, but I'd strongly urge you to test drive them before you make any decisions as they'll all feel a big chunky and heavy next to your BMW i4. 

Have you considered Polestar at all? Both the Polestar 2 and Polestar 4 are within the same price ballpark as you're looking and are both great to drive with a bit of an SUV vibe. The Polestar 2 has been around for a while (I own one as it happens) but it was significantly upgraded last year for more performance, spec and efficiency. It's now either rear-drive or all-wheel drive.

Again, take the time to go and test drive all of these cars before you bother trying to make deals, as the driving experience of the BMW i4 is a hard act to follow.

Expert answer

Hi Bill,

Obviously a plug-in hybrid (PHEV) makes most sense here as those come with ultra-low CO₂ emissions to help keep the BIK down. Though we would only recommend you buy one if you have a way of charging it up at home or at work on a very regular basis.

If you like your Audi, then the new Audi A5 e-hybrid makes for a good option. It can be had as a Sportback or Avant estate within your budget and it's a really lovely car. The e-hybrid system allows for a long electric range and low emissions, too. Read our review of the A5 e-hybrid for more.

The BMW 330e is another excellent premium PHEV within budget, both as a saloon or Touring estate. It's not as fresh-faced as the Audi A5, but it's still a good car. Read our review of the updated BMW 330e if you're interested.

Our next port of call would have been the Skoda Superb, but for some bizarre reason it's only offered as a PHEV in Combi estate format, so if you don't want an estate, then it's not for you. If you're open to the idea, however, it's a considerably larger car than the BMW and Audi mentioned above, if not as interesting to drive. Within budget, however, is the range-topping L&K variant, which puts the Audi and BMW to shame in terms of what you get for your money. Again, read our review of the Skoda Superb Combi PHEV for more.

Other than that trio, you'll be looking at SUVs in reality, unless you fancy moving to a fully electric car.

Come back to us if you want help narrowing things down further.

Expert answer

Hi Martin,

As I'm sure you know, the 330e was updated late in 2024, so if you can find one of those within budget, you'll appreciate the upgrades. Read our review of the revised BMW 330e here.

We're big fans of the 330e as well. It's difficult to beat its blend of performance, driving dynamics, style and efficiency. Here are a few alternatives to consider, nonetheless:

Mercedes-Benz C 300 e: I love the look of these, and it feels like a proper luxury car inside, more so than the BMW. Its chassis is more comfort-focused though, so you need to choose which you prefer. There's not much to choose between this and the updated 330e when it comes to performance, electric range and space, but the Mercedes is very expensive.

Volkswagen Passat GTE: I suspect this is not what you're looking for in terms of badge appeal, but the GTE is a very decent car. It's much bigger inside than your BMW and exceedingly comfortable, with perky performance when you need it (ok, not as perky as the 330e's). Its electric range isn't great, but fine for short commutes. And this car is more affordable than most on this list.

Skoda Superb iV: Much the same can be said about the Superb as for the Passat above, though the Superb is larger again and it doesn't always come with a sporting badge, which some will like. It's not massively common in the classifieds though.

Volvo V60: Now this is a hidden gem and would be my choice of the lot here, even as a serious fan of rear-drive cars such as the 330e. And yes, it is an estate body style, which you might not have been looking for, but it is such a fantastic, polished car that is great to drive, looks sensational and packs a bigger punch than many will expect.

Give our review of the V60 T6 Recharge a read and go test drive one for yourself to make up your own mind. Same advice really for all of the above cars, but this one stands out.

Expert answer

Hi Fergal,

That's actually becoming a bit of a challenge as regular cars such as the Mondeo have fallen out of favour with buyers, so the carmakers are slowly doing away with them. At the same time, demand for diesel engines is waning. Nonetheless, here are a few possibilities:

- Audi A5 'Saloon' (it's actually a five-door hatch)
- Mercedes-Benz C-Class saloon
- Skoda Superb (another hatchback and the closest match to the Mondeo today)

That's pretty much it. A leftfield alternative could be the Peugeot 508 SW, which is the estate model. It can be had with a diesel engine still, but the five-door 508 fastback cannot. We reckon it looks stunning.

How do these strike you?

Expert answer

Hi Gawaine,

Unfortunately it's not possible to find details of a car's owner using the registration plate - only the Gardaí can do that.

Expert answer

Hi Conor, 

There's a wealth of choice at that price point on the used market really. Here are a few options to consider, many of them early 2025 registrations:

Dacia Duster
Hyundai Kona (the newer model)
MG ZS (newer model)
Nissan Qashqai
Skoda Octavia
Volkswagen Taigo or ID.4 if you fancy going electric

I've added links to our reviews of the cars so you can take a look and see what you like the look of. Come back to us and let me know if we're on the right track here, and your thoughts on each of these as we help you narrow down your search.

Expert answer

Hi Conor,

Undoubtedly the Octavia is the most spacious of those three. The Mazda is arguably the most stylish and the Toyota probably the most reliable. Come back to us with full details of each of the cars if you want us to delve further into this with you.

Expert answer

Hi Jurgen,

According to our figures, your car's CO₂ emissions (it's a 2015 Audi A4 saloon 1.8 petrol) are in the 156-170g/km range according to the old NEDC system. 

For such cars, registered before January 2021, the tax band is D, costing €600 a year. 

A car registered after that date with a WLTP rating of 151-160g/km would cost €280 a year and the €400 rate you mentioned is for cars with an emissions rating of 141-155g/km so perhaps the dealer was mistaken.

Expert answer

Hi Louise,

If you come back to us with your budget we can give a more precise answer, but all the premium marques sell good-quality executive saloons of similar size to the Lexus ES. For example the Audi A6, BMW 5 Series and Mercedes E-Class. And there are loads of different versions as well offering a range of performance options if your budget allows.

Expert answer

Hi Fergal,

The first one that comes to mind is the Skoda Superb. A new generation of this massive car was launched last year and it’s a great option. It’s bigger than the Mondeo and can be had with a 2.0 TDI diesel engine.

A lovely car is the Peugeot 508, which can be had with a 1.5-litre diesel, but you might find it small inside in comparison to your Mondeo. Worth a look anyway.

There really aren’t many others if you’re sticking with a diesel saloon, unless you go for one of the premium brands - both Audi and Mercedes sell diesel engines still in the A5 and C-Class, respectively.