And this is my other smart: a fortwo Passion cabriolet.
It too has been modified.

Hybrid turbo
Remap
Pipercross Viper induction hose
Brabus 74kw induction pipe
Janspeed intercooler pipes
Oil cooler
S-Mann air scoop
EBC Brakes
Bilstein shocks
Eibach springs
Blindschleiche twin centre exit exhaust
Kahn 15" wheels
2 sound airhorn
Novelty horn (sounds include Tarzan, Donkey, Wolf whistle, Woody woodpecker, Roadrunner and Horse)

At Smartarse Design

This car has the same 698cc 3 cylinder turbo engine as my roadster but has these factory fitted items:
Paddle shift steering wheel gearchange
Leather seats
Electric cabriolet roof
Air conditioning
Heated seats

Stainless steel axle caps

Dummy rear brake discs

Metal Monkey stainless steel dial faces (electric blue backlighting)

Refitted and relocated oil cooler afer poor fitment of previous one resulted in it's compression by the suspension due to lack of clearance. This meant the old one was ruined and had to be replaced as it was fouling on the suspension. Another independent smart company fitted that one (who I won't name) and the new one was fitted by Smartarse Design who I can't fault with the quality of their work.

Here an 80bhp camshaft (on the right) is being fitted from a roadster to give more performance (the lobes are bigger) along with the roadster injectors.

A freer flowing Janspeed exhaust replaces the previous shorter Blindschleiche.

Some chromework to brighten up the interior around the dials and on the doors along with Chrome vent pods A cup holder and a chrome oil cap have also been fitted.

This car's performance has now improved dramatically and it is now ready for a rolling road. It is, at the moment, probably as quick as my roadster!

I picked up my car on the 14th Jan 2006 with a new engine (above) from a smart roadster! All the other modification parts were added and the car is now even quicker. The most noticeable difference is in better pulling power. It really now needs wider tyres.

February 12th 2006 was the opening celebration day for Smartarse Design's Watford premises and I went with my lovely other half Katie. Above is my car next to a remapped Brabus.

I was invited by Rob at Smartarse to take my car on the rolling road and this was my chance to see if the new custom remap had bedded in enough to break the 100bhp barrier.

The results were fantastic and here is the plot. 101.9bhp at the flywheel was achieved and 98.84 ft-lb of torque which was a great result. The guys at Red Dot had developed a great remap and the guys at Smartarse had done a brilliant job.
An even freer flowing exhaust and tweaks to the remap could see this figure improve even more but I am very happy with the results!

April 2006 and the latest news is the fitting of a Janspeed Stealth Exhaust and Bonalume racing clutch.

Janspeed Stealth exhaust

Bonalume racing clutch

The clutch is still bedding in at this time but the car pulls very well. The acceleration is fantastic.
The Stealth exhaust is quieter at slower speeds but the sound is still nice when pressing on.

Below is the graph from a dyno day on Saturday 22nd April.

A new remap was applied which gives a very smooth power curve compared to the previous one and increases the bhp and torque in the lower and mid rev range.
The maximum figures are almost the same or not much higher but the driveability feels very much stronger and smoother.
Here are the maximum figures:
96.72lb-ft torque @ 3250rpm
79.20 bhp @ 5100rpm at the wheels
103.2bhp @ 5100rpm at the flywheel.

The temperature on the day has to be taken into account. It was a warm day (20Deg) and the new remap has to bed in also.
The bhp figure will improve when this happens and I estimate an extra couple of horsepower pushing the flywheel figure up to around 105bhp.
The improvement is definitely in the smoothness and the extra pull lower down and midrange. The sports clutch helps punch the power through between gearchanges and the sound from the Stealth exhaust is exhilerating - enormous fun!

These photos are from August 2006 and show some cosmetic additions to the car.

Chrome look rear badge replacing the transfer type.

Chrome valve caps

Chrome look door inserts

A close up of the chrome fuel cap (this has been on the car for a while now)

Close up of air intake (fitted previously). This is purely cosmetic now due to the induction pipe being located lower down for ram air effect although not too low to allow water to enter in extreme conditions.

Rear wheelarch extensions. Also visible is the dummy brake disc cover.

Brushed chrome ignition key collar

Chrome and carbon look door handles and hand brake

Close up of novelty horn button controls (as fitted previously)

September 14th 2006 and my X-Gauge has been fitted.
This is basically an on board computer that is incorporated into the clock pod and replaces it.
It has an extensive range of parameters including, to name a few:
Coolant temperature
Intake absolute pressure
Battery voltage
Time/Date
Inside temperature
Engine load
Acceleration
Miles per gallon

It works very well and plugs into the OBD port so that it can take readings from the ECU.

The X-Gauge is on the left showing seven parameters at once

Here is where it plugs in and takes readings from the ECU

Also fitted today was a solid parcel shelf (replacing the flimsier plastic one) that is very rare on cabriolet smarts and only available on earlier models and since discontinued.

October 13 2006 and a silver Brabus front spoiler has been added.

Some wire mesh was placed behind the spoiler and the grille and chrome effect number plate housings were fitted front and back.

At the same time I decided to replace my clock pod to complement the X-gauge and the rev counter to make three pods in the centre.

20mm wheel spacers were put on at the back but the car is too low to have them on at the front at the moment because the tyres rub on the wheel arches - looks like adjustable suspension will have to come soon.
The car definitely corners more neutrally now and can be thrown around corners with greater confidence.

Some chrome mirror adjusters were fitted in place of the rubber/plastic items to continue the chrome theme for the interior.

An Audi A6 Bosch fuel regulator was fitted similar to the one on my roadster. It gives greater fuel pressure due to being 4 bar as opposed to 3.8 bar. This mod really seems to make a surprisingly significant difference and, whereas on the roadster it was fitted in combination with a major service and fuel filter change, the one fitted on my mk7 smart was the only single change to the engine configuration so the difference was attributable solely to the new fuel regulator.
This is a highly recommended cheap mod and the effect is remarkable.

Left is the standard smart fuel regulator and right is the Audi A6 one.

Here's a recent night shot (Jan 2007)

Toyo T1-S tyres fitted all round (Feb/March 2007). Previous spec was 175/50/15 (front), 195/50/15 (rear). Now upgraded at the front to 195/45/15. Rear spacers were added to increase the track.
The handling is now very neutral with transformed lack of understeer. The Toyos are sticky and have a nice soft compound so the grip is excellent.

Side skirts painted black for easy cleaning and a nice gloss look (March 2007)

Rear Eibach springs and front Bilstein springs replaced with new Bilsteins all round. The old ones were tired and the ride has improved with the new ones and the handling has remained good.

25th August 2007 and I've finally had fitted the braided brake hoses while the car was in for a 'C' service.

Front

Rear

One of my rear Kahn alloys had become buckled in July on the rim after driving into a huge pothole.

These wheels were already kerbed in several places when I bought the car so this was a good opportunity to change them for some smart Strikelines. The centre caps didn't come with the wheels so they are on order.

21st November 2008: Fitted Leather dashboard and door cards. These were an ebay purchase from a really nice guy who had them professionally covered and the quality is really first rate.

23rd January 2009: Finally got around to fitting some metal pedals.

Soon to be added:
Cruise control 
Metal gearknob

It may not corner as well as the roadster but it is great fun, very roomy and makes a lovely noise.